NCY Gear Set (15*37); GY6 150cc f Has clear instructions with hundreds

Has clear instructions with hundreds of illustrations to help you perform anything from simple maintenance to basic repairs

Max Torque (N-m/rpm): 3

Tubeless Design: High-pressure

Every component in this kit is engineered to work together as a matched system — delivering quicker acceleration

raspy exhaust note that'll make your neighbors wet their pants and make them think you've just bought the new Ferrari scooter

NCY Gear Set (15*37); GY6 150cc f Has clear instructions with hundredsGet 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