RC CVT kit
Our most popular kit for all year zuma 125, since 2010. TST dual ramp variator, 9/10/11/12g roller weights and 1,200rpm compression spring. Everything you will need to get the most out of your variator. For 125cc start off with 9/10g roller weights. 158R bbk start with 9/11g and 1,200rpm spring. Heavier rollers goes into the S ramp and lighter rollers in the L ramp. Markings located behind the TST variator. Increased acceleration but shifting at a higher rpm at full throttle and larger sized variator for increased top speed.