NCY Gear Set (15*37); GY6 150cc set Bolt Holes: 8

Bolt Holes: 8

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Fits NCY Big Bore Kit #1100-1265

If your bike "dies" at stoplights

a triggering circuit

NCY Gear Set (15*37); GY6 150cc set Bolt Holes: 8Get more speed and a more usable rev range out of your GY6 big bore kit with this 15*37 upgear set from NCY. This kit is a 20% upgear ratio from the stock 13*40 gear set. Specifications: Front Counter Shaft Teeth: 15 Front Counter Shaft Dimensions: Spline L: 24mm, OD: 31. 1mm, Overall L: 60mm Gear Press On Area L: 12. 08mm x OD: 19. 08mm, Ends L: 9<10. 5mm x OD: 15mm Rear Final Drive Gear Teeth: 37 Inner Spline: 19, OD: 71. 2mm, ID: 18mm, W: 20mm