Naraku speed-up variator bush kit for Chinese GY6, Peugeot 4-stroke,  Kymco & Sym 50cc 2/4-stroke scooters.

On many standard variators the range of movement is limited by the length of the bush. Included in the kit is a new bush and 30 shims, the shims included in this kit allow for fine adjustment to the length of the bush, a longer bush results in better acceleration and a shorter bush increases the top speed. This kit is particularly useful on Euro4 scooters when derestricting the scooter.

Suitable for original and most tuning variators (please check the outer diameter of the bush is 20mm)

Bush dimensions:
OD: 20mm
ID: 14.1mm
Length: 38mm