Gear 51 teeth wheel axle China 4-stroke \/ GY6 50cc

Gear 51Z wheel shaft China 4T \/ GY6 50cc.For the very common GY6 4-stroke engine there are many original spare parts.

The gearbox consists of the input shaft, on the end of which sits the clutch and introduces the power, and the output shaft with the chain pinion. For each gear there is a pair of gears.