Yamaha Jog R AC 50cc (1992-2001) Variator Control Shim Set
These Speed-up shims influence the length of the variator sleeve. Lengthening can improve acceleration and shortening can increase top end speed. This should be 18mm. This product is suitable for the Yamaha Jog 50 2T AC 92-01 E1 [4SC/ 3SA].