CVT Variator Polini Hi Speed Piaggio After 1998

Polini Hi-Speed variator The CVT (variator)'s job is to optimally transmit engine speed. The Polini Hi-Speed variator (with 19x15.5mm - 6.3g CVT weights + reinforced contra spring) is available at a top price-performance ratio. Polini Hi-Speed Performance The roller tracks of the Hi-Speed have been optimized compared to the previous model Speed control. The scooter accelerates even better and top speed is increased, provided you use the correct weights. We recommend trying out different weights to further improve shifting behavior and performance. It is compatible with a standard-size belt, but we highly recommend using a reinforced belt. The “Hi-Speed” tuning CVT is recommended for 50cc sport/racing setups.