Four speed gear box for pit bikes will fit various engines. This is for 4 speed manual. If you have gearing problems this kit can be used to replace the worn cog. But it is recommended the full gearing system is replaced at the same time too reduce the chance of component failure in the future.

Larger gear Shaft size 116.5MM length and 16.55 MM thick approx.

Smaller gear Shaft size 119.5mm Length and 17.5 thick approx.

Will suit several machines and engine sizes.