Quick view Details TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* MSRP: Now: $209.95 Add to Cart Compare Quick view Details TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* MSRP: Now: $219.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES MSRP: Now: $39.95 Add to Cart Compare Quick view Details GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON MSRP: Now: $49.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) MSRP: Now: $49.95 Add to Cart Compare Quick view Details TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES MSRP: Now: $425.00 Choose Options Compare SALE Quick view Details TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view Details TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view Details TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V MSRP: Now: $314.95 Choose Options Compare Quick view Details TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* MSRP: Now: $239.95 Choose Options Compare Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view Details TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* MSRP: Now: $219.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES MSRP: Now: $39.95 Add to Cart Compare Quick view Details GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON MSRP: Now: $49.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) MSRP: Now: $49.95 Add to Cart Compare Quick view Details TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES MSRP: Now: $425.00 Choose Options Compare SALE Quick view Details TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view Details TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view Details TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V MSRP: Now: $314.95 Choose Options Compare Quick view Details TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* MSRP: Now: $239.95 Choose Options Compare Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view Details GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES MSRP: Now: $39.95 Add to Cart Compare Quick view Details GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON MSRP: Now: $49.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) MSRP: Now: $49.95 Add to Cart Compare Quick view Details TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES MSRP: Now: $425.00 Choose Options Compare SALE Quick view Details TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view Details TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view Details TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V MSRP: Now: $314.95 Choose Options Compare Quick view Details TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* MSRP: Now: $239.95 Choose Options Compare Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view Details GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON MSRP: Now: $49.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) MSRP: Now: $49.95 Add to Cart Compare Quick view Details TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES MSRP: Now: $425.00 Choose Options Compare SALE Quick view Details TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view Details TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view Details TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V MSRP: Now: $314.95 Choose Options Compare Quick view Details TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* MSRP: Now: $239.95 Choose Options Compare Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view Details GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) MSRP: Now: $49.95 Add to Cart Compare Quick view Details TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES MSRP: Now: $425.00 Choose Options Compare SALE Quick view Details TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view Details TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view Details TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V MSRP: Now: $314.95 Choose Options Compare Quick view Details TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* MSRP: Now: $239.95 Choose Options Compare Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view Details TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES MSRP: Now: $425.00 Choose Options Compare SALE Quick view Details TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view Details TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view Details TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V MSRP: Now: $314.95 Choose Options Compare Quick view Details TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* MSRP: Now: $239.95 Choose Options Compare Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
SALE Quick view Details TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare
SALE Quick view Details TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare
Quick view Details TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V MSRP: Now: $314.95 Choose Options Compare Quick view Details TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* MSRP: Now: $239.95 Choose Options Compare Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view Details TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* MSRP: Now: $239.95 Choose Options Compare Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view Details NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc MSRP: Now: $424.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view Details NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* MSRP: Now: $179.95 Out of stock Compare Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view TAIDA | sku: TD50mm TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *50mm* QMB139 *81cc/86cc* TAIDA 50cc QMB139 4-STROKE 50mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $209.95 Add to Cart Compare Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view TAIDA | sku: TD50cc TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT *52mm* QMB139 *87.9cc/93cc* TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET. WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL... MSRP: Now: $219.95 Add to Cart Compare Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view GY6 STORE | sku: 88806 80cc (47mm BORE) BIG BORE KIT FOR SCOOTERS QMB139 MOTORS 69mm VALVES 80cc (47mm BORE) UPGRADE KIT FOR QMB139 MOTORS TRUE DISPLACEMENT *72cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 80cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 72cc / 80cc MOTOR ADDING MORE POWER... MSRP: Now: $39.95 Add to Cart Compare Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view GY6 STORE 172cc (61mm BORE) K-BLOCK CYLINDER SET WITH *57mm SPACING* CAST PISTON HIGH PERFORMANCE 172cc (61mm) CYLINDER SET FOR 57mm SPACING (MOST PEOPLE CALL THESE 200cc) CYLINDER JUG (61mm) 57mm SPACING *K-BLOCK* GASKET SET KBF CAST PISTON PISTON RINGS WRIST PIN & CLIPS *NO CASE BORING... MSRP: Now: $49.95 Add to Cart Compare Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view GY6 STORE | sku: 88807-N 100cc BIG BORE KIT FOR CHINESE SCOOTER NON EGR *69mm VALVES* 139QMB (50mm BORE) 100CC BIG BORE KIT FOR CHINESE SCOOTERS THIS KIT HAS A 50MM CYLINDER BORE AND 69MM VALVES NON EGR CYLINDER HEAD COMES WITH EVERYTHING IN THE PHOTOS OVERALL HEIGHT 59.5MM INTAKE PORT DIAMETER 18MM EXHAUST PORT DIAMETER... MSRP: Now: $49.95 Add to Cart Compare Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view TAIDA TAIDA 172cc 61mm COMPLETE BIG BORE KIT (OD 62.7) GY6 (54mm SPACING) 28.5/24 VALVES TAIDA 172cc 61mm BIG BORE KIT (OD 62.7) HIGH PERFORMANCE FOR GY6 MOTORS INCLUDES 28.5/24 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 61mm TAIDA CYLINDER WITH PISTON & PISTON RINGS... MSRP: Now: $425.00 Choose Options Compare SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
SALE Quick view TAIDA TAIDA JOG 90cc 54mm BORE LIQUID-COOLED CYLINDER KIT TAIDA JOG LIQUID COOLED CYLINDER KIT SIZE 53 X 42 MM FOR 90CC 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. TAIDA JOG 90CC LIQUID-COOLED CYLINDER KIT SPECIFICATIONS: CYLINDER BORE: 53MM EXHAUST PORT DIAMETER (AT WIDEST... MSRP: $440.00 Was: $440.00 Now: $393.75 Add to Cart Compare
SALE Quick view TAIDA | sku: GY6-06057-63-75c-4V TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm FORGED DOME PISTON (57mm SPACING) 4V *4 VALVE* TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm FORGED FLAT PISTON (57mm SPACING) 4 VALVE *4V* LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm... MSRP: $399.95 Was: $399.95 Now: $361.55 Add to Cart Compare
Quick view TAIDA | sku: GY6-06057-67-75 TAIDA CERAMIC LIQUID COOLED CYLINDER SET 67mm (57mm SPACING) 2V TAIDA 232cc GY6 CERAMIC LIQUID COOLED CYLINDER SET W/ 67mm PISTON (57mm SPACING) LIQUID COOLED 232cc TAIDA CERAMIC CYLINDER WITH FORGED ALUMINUM PISTON OFFER BETTER DURABILITY AND REDUCED FRICTION FOR 57mm B-BLOCK GY6 ENGINES. THE FORGED... MSRP: Now: $314.95 Choose Options Compare Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view TAIDA | sku: GY6-01057-67c TAIDA CERAMIC CYLINDER SET 67mm BORE (57mm SPACING) *69.9mm HEIGHT* TAIDA GY6 CYLINDER SET WITH 67mm BORE (57mm STUD SPACING) **POLARIS RAZOR** THIS IS TO BE USED WITH STOCK CRANKSHAFT *57.8* INCLUDES CERAMIC 67mm CYLINDER FOR 57mm SPACING *B-BLOCK* CAST FLAT PISTON PISTON... MSRP: Now: $239.95 Choose Options Compare Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected × OK
Quick view NCY | sku: PKCSCGO-2 STAGE 2 PERFORMANCE KIT QMB139 50cc UPGRADED TO 72cc aka 80cc STAGE 2 PERFORMANCE KIT 4T; CSC GO!, QMB139 TAKES YOUR 50CC QMB139 TO 72CC KIT INCLUDES SKUS: 0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139 1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM... MSRP: Now: $424.95 Add to Cart Compare Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected
Quick view NARAKU | sku: 137-11 NARAKU 180cc (63mm) GY6 CYLINDER SET (54mm SPACING) WITH *FORGED DOME PISTON* NARAKU HIGH PERFORMANCE 180cc (63mm) CYLINDER SET FOR 54mm SPACING INCLUDES CYLINDER JUG (63mm) 54mm SPACING *A-BLOCK* GASKET SET FORGED DOME HIGH COMPRESSION PISTON PISTON RINGS WRIST PIN & CLIPS EVERYTHING IN THE... MSRP: Now: $179.95 Out of stock Compare 1 2 3 4 5 Next 1 2 3 4 5 Next Compare Selected