Quick view Details TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON MSRP: Now: $80.73 Add to Cart Compare Quick view Details TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS MSRP: Now: $119.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES MSRP: Now: $2.75 Add to Cart Compare Quick view Details TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS MSRP: Now: $51.95 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS MSRP: Now: $45.85 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS MSRP: Now: $49.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $29.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $36.95 Out of stock Compare Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS MSRP: Now: $119.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES MSRP: Now: $2.75 Add to Cart Compare Quick view Details TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS MSRP: Now: $51.95 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS MSRP: Now: $45.85 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS MSRP: Now: $49.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $29.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $36.95 Out of stock Compare Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES MSRP: Now: $2.75 Add to Cart Compare Quick view Details TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS MSRP: Now: $51.95 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS MSRP: Now: $45.85 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS MSRP: Now: $49.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $29.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $36.95 Out of stock Compare Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS MSRP: Now: $51.95 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS MSRP: Now: $45.85 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS MSRP: Now: $49.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $29.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $36.95 Out of stock Compare Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS MSRP: Now: $45.85 Add to Cart Compare Quick view Details TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS MSRP: Now: $49.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $29.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $36.95 Out of stock Compare Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS MSRP: Now: $49.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $29.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $36.95 Out of stock Compare Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $29.95 Out of stock Compare Quick view Details TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $36.95 Out of stock Compare Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* MSRP: Now: $36.95 Out of stock Compare Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS MSRP: Now: $145.95 Add to Cart Compare SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
SALE Quick view Details NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare
Quick view Details SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) MSRP: Now: $7.50 Add to Cart Compare Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $86.95 Out of stock Compare Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view TAIDA | sku: GY650-01050 TAIDA 50mm (81cc) QMB139 CYLINDER SET (54mm SPACING) WITH CAST PISTON TAIDA HIGH PERFORMANCE 81cc (50mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (50mm) 54mm SPACING *A-BLOCK* GASKET SET CAST PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE PHOTOS OD:... MSRP: Now: $80.73 Add to Cart Compare Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view TAIDA | sku: GY650-020-23/20 TAIDA BIG VALVE CYLINDER HEAD (FOR 50mm & 52mm CYLINDER , 23 / 20 VALVES) FOR QMB139 MOTORS TAIDA BIG VALVE RACING CYLINDER HEAD FITS: 50mm & 52mm **64mm OVERSIZED VALVES** 64mm 2-VALVE: 23mm INTAKE / 20mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST REQUIRES A 20mm CARBURETOR ALSO A HIGH... MSRP: Now: $119.95 Add to Cart Compare Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view GY6 STORE | sku: 61345 OIL PUMP SPROCKET GEAR *33 TEETH* FOR 50cc - 100cc 4-STROKE QMB139 ENGINES OIL PUMP KIT ASSEMBLY FOR 50cc QMB139 ENGINES *THAT USE THE 33 TOOTH OIL PUMP* FITS MOST CHINESE SCOOTERS WITH 50cc QMB139 MOTORS FITS BRANDS LIKE TAOTAO, JMSTAR, ROKETA, SUNL, TANK, PEACE, JONWAY, GATOR AND MANY... MSRP: Now: $2.75 Add to Cart Compare Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view TAIDA | sku: TD1836 TAIDA SECONDARY GEAR SET (18*36) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (18*36) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 18*36 IS LONGER BY 35% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $51.95 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view TAIDA TAIDA SECONDARY GEAR SET (16*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (16*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 16*37 IS LONGER BY 25% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $45.85 Add to Cart Compare Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view TAIDA TAIDA SECONDARY GEAR SET (15*37) FOR GY6 MOTORS TAIDA PERFORMANCE SECONDARY GEAR SET (15*37) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE TAIDA GEARS SET 15*37 IS LONGER BY 20% FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER... MSRP: Now: $49.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view TAIDA | sku: GY6-ABVC-4V TAIDA TITANIUM (4V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR TAIDA 4 VALVE HEADS FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $29.95 Out of stock Compare Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view TAIDA | sku: GY6-ABVC-2V TAIDA TITANIUM (2V) VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS *NEW* TAIDA TITANIUM VALVE SPRING RETAINER SET FOR 150cc GY6 MOTORS CAN ALSO BE USED WITH 50cc QMB139 MOTORS *ANY QUESTIONS PLEASE FEEL FREE TO GIVE US A CALL* MSRP: Now: $36.95 Out of stock Compare Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view NCY | sku: 1100-1435 NCY BIG VALVE RACING CYLINDER HEAD (52mm, 88cc) FOR QMB139 MOTORS NCY BIG VALVE RACING CYLINDER HEAD FITS 52mm (81cc) BORE CYLINDERS 64mm 2-VALVE: 21.5mm INTAKE / 19mm EXHAUST FACTORY PORTED: 24mm INTAKE / 22mm EXHAUST PAIR WITH NCY 52MM CYLINDER KIT FOR A 88cc... MSRP: Now: $145.95 Add to Cart Compare SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
SALE Quick view NCY | sku: 1100-1239 NCY PERFORMANCE CYLINDER HEAD (50mm, 81cc, ALLOY) FOR QMB139 MOTORS NCY HIGH PERFORMANCE CYLINDER HEAD FITS 50mm (81cc) BORE CYLINDERS PAIR WITH NCY 50mm CYLINDER KIT FOR A 81cc BIG BORE KIT. THIS ITEM CAN BE FOUND IN OUR STORE MADE IN... MSRP: $175.00 Was: $175.00 Now: $146.95 Add to Cart Compare
Quick view SSP-G | sku: 169-443 SSP-G VITON VALVE SEALS FOR 150cc GY6 & 50cc QMB139 MOTORS (VALVE STEM SEALS) SSP-G VITON VALVE SEALS FOR 150cc GY6 AND 50cc QMB139 MOTORS (VALVE STEM SEALS) (BUYER GETS 1 PAIR) Viton Valve Seals can handle higher temperatures and have better wear resistance. These will work in 50cc 4-stroke QMB139... MSRP: Now: $7.50 Add to Cart Compare Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected
Quick view TAIDA | sku: GY680-pm002 TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR TAIDA HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND... MSRP: Now: $86.95 Out of stock Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected