Variator Polini Hi-Speed - Aprilia / Malaguti / MBK / Yamaha Minarelli (vertical) - 50 2T

Performant and reliable, the Polini Hi-Speed variators ensure optimal power transmission from the engine. Compatible with scooters equipped with 50cc 2-stroke Minarelli / Yamaha vertical engines, some of the key applications include: Aprilia Amico / SR 50 (Minarelli vertical) / MBK CW 50 Booster / Booster NG / Booster Road / Booster Rocket / EW 50 Stunt / Yamaha CW 50 BWS / CW 50 RS NG BWS / CW 50 RSP Spy / Slider / Zuma.

The Polini Hi-Speed variator line is one of the most optimized variator options available for scooters and maxiscooters. Special attention has been given to enhance both acceleration and top speed by modifying the ratio under low torque conditions. Reliability and performance are improved compared to the original version. It includes all components shown in the picture.

Technical specifications:
- number of roller sets: 1
- dimensions / weight of rollers: 16x13mm / 6.9g
- includes counterpressure spring
- includes rear clutch springs.