NCY Gear Set (17*41); QMB139, CSC, Wolf, 50cc

SKU 1200-1271
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NCY QMB139 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 qmb139 scoots.  Only effective if you have a full blown 88cc kit with a big valve head, and stroker crank.

  • 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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