Cylinder kit 72cc.47mm (bottom).

Scooter GY6 Performance

Performance 72cc (47mm) Cylinder Kit.

 For the 50cc (39mm) 4-stroke GY6 Scooter. Increase about 30% of the power

and 50% of the torque. Each kit include: Cylinder, gaskets piston and rings.

Cylinder diameter (mm) 47
block height (mm) 53.2
 barrel height (mm) 70
Piston height 34
Piston compression Height 17
Piston pin diameter (mm): 13
Piston pin lenght (mm): 37



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