variator kit Polini Hi-Speed for Piaggio, Derbi, Gilera P.33148

Latest variator technology from Polini for untuned 50cc engines for improved acceleration and higher top speed. Polini evo sliders make for better power transfer and shifting.No additional tuning required, so a great option for untuned scooters. Delivery contains: Hi-Speed variator with sleeve, 2x counter pressure springs, Evo-sliders, 2x sets of variator weights (19x15.5) at 6.3g and 5.g, and a Polini drive belt.