NCY Gear Set (16*42); QMB139, CSC, Wolf, 50cc

SKU 1200-1269
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NCY QMB139 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.

  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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