Polini
Polini Hi-Speed Transmission Kit – Yamaha Zuma/Vino 50cc
Description
The Polini Hi-Speed Performance Transmission Kit is a complete CVT drivetrain upgrade for Yamaha Zuma & Vino 50cc 2-stroke scooters as well as other models with horizontal Minarelli engines. The kit bundles every major transmission component — variator, clutch springs, torque spring, and matched roller weights — so you can overhaul the entire CVT in one shot and dial in performance from launch to top speed.
- Complete CVT transmission kit — variator through clutch in one package
- Includes: variator, ramp plate, slides, variator boss, 6.9g roller weights, clutch springs, and torque spring
- Variator pulley machined from silicon-aluminum alloy for reduced wear and increased power transfer
- Roller weights: 6.9g (16x13mm) for horizontal Minarelli CVT
- Upgraded clutch and torque springs improve engagement and top-end pull
| Spec | Detail |
|---|---|
| Kit Contents | Variator, Ramp Plate, Slides, Variator Boss, Roller Weights, Clutch Springs, Torque Spring |
| Variator Material | Silicon-aluminum alloy |
| Roller Weight Size | 16x13mm |
| Roller Weight | 6.9g |
| Engine Type | Horizontal Minarelli 2-stroke 50cc |
| Brand | Polini |
| Compatible Models |
|---|
| Yamaha Zuma 50 (2-stroke) |
| Yamaha Vino 50 (2-stroke) |
| Yamaha Jog 50 |
| Malaguti scooters with horizontal Minarelli engine |
| Aprilia SR50 (pre-2000) |
Watch: Polini Hi-Speed Transmission Overview (YouTube)
Product Diagrams
Features
Specifications
Roller Size: 16x13mm | Roller Weight: 6.9g | Engine: Horizontal Minarelli 2-stroke 50cc | Kit Includes: Variator, Ramp Plate, Slides, Boss, Roller Weights, Clutch Springs, Torque Spring
Model Fitments
Yamaha Zuma 50 (2-stroke), Yamaha Vino 50 (2-stroke), Yamaha Jog 50, Malaguti horizontal Minarelli, Aprilia SR50 pre-2000
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
