Polini Hi-Speed Evolution Variator Kits

Polini are well known as the market leaders when it comes to transmission components and their latest Evolution Hi-Speed kits are sure to set almost unbeatable targets for the nearest, but distant competition. The benefit of 9 rollers has proved a success on and off the race track over the last few years and now Polini have added some exciting improvements.
Under hard use variators generally increase in temperature which can make rpm drop off due to belt travel being delayed, because of this transmission becomes less efficient. Thanks to a new patented lubrication system from Polini the cannon bush is constantly greased which not only lowers temperatures but allows for perfect variation all of the time under extreme use. The rollers have also been treated to a new coating made form a mix of nylon and aramid fibres to further reduce temperature and roller life.

Minarelli engines D .13 – AD/241.682

Minarelli engines D.16 – AD/241.683

Piaggio engines D. 14.8 – AD/241.680

Piaggio engines D . 16 – AD/241.681