Polini Hi-Speed variator Kit

The Hi-Speed is the successor of Polini's famous "Speed Control" CVT. Roller tracks, bushing, and drive face have been optimized for better performance. Result: noticeably improved power transfer and acceleration, provided the correct roller weights are used.

For long Piaggio engines after 1998 (Typhoon, Nrg, Runner, SR50...)

• CVT with plus ramp plate and sleeve
• 2 sets of 19x15,5mm roller weights
• Reinforced drive belt
• 2 torque springs (different strengths) and the ingeniuous "Evo Slider" anti-torsion spring seat