NCY Gear Set (16*37); GY6 sport providing faster acceleration and reducing

providing faster acceleration and reducing rider wrist fatigue during long sessions

Genuine has fostered a dedicated community of two-wheeled enthusiasts

Front Counter Shaft Teeth: 15 / Spline L: 24mm / OD: 31

Bore Diameter: 57mm (57

Inner Diameter (Boss): 18mm

NCY Gear Set (16*37); GY6 sport providing faster acceleration and reducingGet more speed and a more usable rev range out of your 125 150cc GY6 big bore kit with this 16*37 upgear set from NCY. This kit has a 25% upgear ratio from the stock 13*40 gear set. NOTE: You're going to need access to a 12 ton hydraulic compressor to remove the stock counter shaft gear from the counter shaft, and then again to re press the new NCY counter shaft gear. Specifications: Front Counter Shaft Teeth: 16 Front Counter Shaft Dimensions: Spline