Piaggio / Gilera 50 Polini Hi-Speed EVOLUTION 2 variatorius

Polini drew on their considerable racing and tuning experience to design a CVT that represents a definite upgrade to the stock part, with smooth and stable transmission and better acceleration from take-off to top speed. Your scooter will rev up a bit more aggressively and reach higher top speeds. For the EVO 2 version the Polini engineers opted for a DLC (Diamond Light Carbon) bushing - light, low friction, sturdy. Two high quality oil seals ensure constant lubrication. The cores of the variator roller weights have polished sliding surfaces, the outside shells come with a heat- and wear-resistant Nylon / Aramid coating. The contra spring (plus anti-torsion spring seat) has a spring tension of +8%, so it is a bit harder than the stock spring. The Polini Hi-Speed  is the perfect CVT for any Sport or even Racing set-up. Included: variator with ramp plate 2 sets of 6 weights 19x15,5 mm (3,8 and 4,3 g) torque spring spring seat Evo Slider 1 tube of pulley grease