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Big Bore Upgrade — increases displacement from 50cc to 89
Original Parts For Scooters SKU 146-86
Nuts (x2): L: 4
Often referred to as a "Super Coil
Polini Hi-Speed Variator Kit for Yamaha Zuma 50cc Tires and Tubes Big Bore Upgrade — increasesPolini Performance Transmission Kit for Yamaha Zuma and Long Case Minarelli 50cc 2 Stroke Scooters. Includes Variator, Ramp Plate, Slides, Variator Boss, Roller Weights in 5. 6g and 6. 9g, Reinforced Clutch Springs, Torque Springs in 22kg and 28kg and a Drive Belt size 750 16. 8 30. Also fits Yamaha Jog, Malaguti F12 and F15 and Pre 2000 Aprilia SR50 Scooters. Includes: Variator, Ramp Plate, Slides, Variator Boss, Roller Weights in 5. 6g and 6. 9g,
US$ 149.99
US$ 129.99
US$ 179.99
US$ 99.99
US$ 99.99
US$ 89.99
