BIG BORE / REBUILD KITS

TAIDA 58.5mm (155cc BORE) GY6 CYLINDER SET *54mm SPACING*

TAIDA HIGH PERFORMANCE  155cc (58.5mm) CYLINDER SET   FOR 54mm SPACING *A BLOCK*   INCLUDES   CYLINDER JUG (58.5mm) 54mm SPACING *A-BLOCK* GASKET SET YOUR CHOICE PISTON PISTON RINGS  WRIST PIN & CLIPS EVERYTHING IN THE...

HOCA BIG BORE HEAD KIT FOR 90cc 2-STROKE MINARELLI JOG ENGINES (54MM BORE)

HOCA BIG BORE HEAD KIT FOR 90cc 2-STROKE 50QMF, E50QMF, 1E50QMF AND 1PE50QMF MINARELLI ENGINES. 54mm WITH 12mm WRIST PIN, INCLUDES CYLINDER HEAD.    WRIST PIN DIAMETER: 12mm WRIST PIN LENGTH: 44mm FITS 1PE50QMB MINARELLI BASED ENGINES WITH...

TAIDA 155cc 58.5mm BIG BORE KIT (OD 60.4) HIGH PERFORMANCE FOR GY6 (54mm SPACING)

TAIDA 155cc 58.5mm BIG BORE KIT (OD 60.4) HIGH PERFORMANCE FOR GY6 MOTORS   INCLUDES 28/23 TAIDA CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm) 58.5mm TAIDA CYLINDER WITH PISTON & PISTON RINGS INSTALLED (CAST...

NARAKU SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD KIT *52.4mm*

NARAKU 50cc QMB139 4-STROKE 52.4mm, RACING BIG BORE CYLINDER AND 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...

80cc (47mm BORE) CYLINDER UPGRADE KIT FOR QMB139 MOTORS

80cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERSTHIS KIT HAS A 47mm CYLINDER BORE    THIS KIT HAS NO CYLINDER HEAD   QMB139 47MM PISTON KIT   PISTON DIAMETER: 47mm  PISTON PIN DIAMETER: 13mm  PISTON PIN LENGTH:...