Product Details
DESCRIPTION: Polini Performance Transmission Kit for Yamaha Zuma and Vino 50cc 2 Stroke Scooters.Includes Variator, Ramp Plate, Slides, Variator Boss, Roller Weights in 6.9g, Clutch Springs and Torque Spring. Also fits Yamaha Jog, Malaguti Scooters with the Horizontal Minarelli Engine and Pre-2000 Aprilia SR50 Scooters.Includes: Variator, Ramp Plate, Slides, Variator Boss, Roller Weights in 6.9g, Clutch Springs and Torque Spring.Yamaha, Yamaha Jog
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, Minarelli, 2-Stroke
- Fits Models / Common Applications: Aprilia and Yamaha Zuma and other compatible models may apply.
- Fitment Notes: Performance
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a Aprilia?
A: This SKU is listed with Aprilia model fitment where the scooter also matches the listed engine or fitment notes.
Q: Is this for 50cc scooters?
A: This SKU is listed with 50cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 2.15 lbs |
|---|---|
| Dimensions | 11 × 9 × 3.5 in |
| Condition | New |
|---|
The Polini Hi-Speed Transmission Kit is a complete CVT drivetrain upgrade for Yamaha Zuma and Vino 50cc 2-stroke scooters and other models with horizontal Minarelli engines. The kit bundles every major CVT component — variator, ramp plate, 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.
This product is intended for off-road use only. This product is not intended for use on public roads or land.
- Complete CVT 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 (Italy) |
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| Make | Model |
|---|---|
| Yamaha | Zuma 50 (2-stroke) |
| Yamaha | Vino 50 (2-stroke) |
| Yamaha | Jog 50 |
| Malaguti | Scooters with horizontal Minarelli engine |
| Aprilia | SR50 (pre-2000) |
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