Reserve from the case
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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Nov 4 - Nov 9
Reserve from the case
Ships within 48 hours · Estimated delivery Nov 4 - Nov 9
5" W x 4" H
Stock crank case replacement
Includes extended throttle cable
NOTE: Since you're already taking your engine apart
NCY Gear Set (17*41); 139QMB, CSC, Wolf, 50cc polini performance variator kit 5" W x 4" HNCY 139QMB upgear kit for your 50cc 4 strokes is finally here! This kit is made specifically for 88cc big bored engines and increases your gear ratio by 30%. This is the mother of all upgears for the 50cc 139QMB scoots. Only effective if you have a full blown 88cc kit with a big valve head, and stroker crank.
US$ 965.00
US$ 32.40
US$ 45.00
Pay in 4 interest-free payments of $16.25 Learn more