Upgrade your CVT with the Polini Performance Variator � widely regarded as the benchmark for 157QMJ-based GY6 scooter tuning. The larger 118mm variator pulley widens the gear ratio for stronger acceleration and higher top speed. Includes a +10% blue clutch torque spring and two roller weight sets. Made in Italy by Polini.
Kit includes:
Compatible Models:
Note:
This Polini GY6 125cc - 150cc set works on all Honda style 4T 152QMI, 157QMJ, QMI152, QMJ157 engines with15mm diameter crankshafts. This will not fit 161QMK GY6-B / GY7 engines that have a 17mm diameter crankshaft. Measure your crankshaft diameter to confirm compatibility. Not for use on public roads or land.
California Prop 65 Warning: www.p65warnings.ca.gov
