Polini Transmission Kit for Yamaha C3 and Zuma 50FX 4-Stroke

Polini performance transmission kit for liquid cooled 4-stroke fits Yamaha C3 and Zuma 50FX scooters. This kit is designed to improve acceleration on stock, untuned scooters. Includes Variator, Ramp Plate, Slides, 13x20x38 Variator Boss, Green +35% Clutch Springs, 16x13 Roller Weights in 4.9g, and a 38mm, 34Kg Torque Spring. fits the following 4 stroke models: fits Yamaha: C3 (Vox/Giggle), Zuma 50 F/FX, Aerox 50 (Europe only), Neos 50 (Europe only)MBK: Ovetto 50, Booster 50 X, Nitro 50 (All models Europe only)Please see our Warranty & Returns Policy. Includes the following: Variator, Ramp Plate, Slides 13x20x38 Variator Boss and 16x13 Roller Weights in 4.9gGreen +35% Clutch Springs 38mm, 34Kg Torque Spring