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Mid-Race Performance: Polini Corsa 70cc Iron Cylinder
* Patent pending
SKU: 1200-1212
Expanded Model Fitment Matrix
NCY Gear Set (16*42); 139QMB, CSC, Wolf, 50cc vee Mid-Race Performance: Polini Corsa 70ccNCY 139QMB upgear kit for your 50cc 4 strokes is finally here! This kid is made specifically for big bored engines and increases your gear ratio by 24%. This will allow you to maximize your big bore kit by increased top speed and a more usable rev range. You won't see much if any improved performance if you install these on a stock top end.
