VARIATOR POLINI 12 EVOLUTION3 YAMAHA T MAX ROLLERS: THE EVOLUTION OF THE SPECIES IS PATENTED The Polini has further developed the Maxi Speed Control 12 rollers for Yamaha T-Max that is presented in the EVOLUTION 3 series. It has the characteristic of having an innovative patented lubrication system. LE technical innovations are: the special steel bushing cemented, hardened, rectified chromium nickel. SI is distinguished by the large internal bag with function of grease tank inside which is placed a special spring that allows a constant distribution of grease on the plug even pithe conditions of use heavy ù. The inside of the roller tracks underwent a shine treatment to improve sliding. The rollers are covered with a new mixture of nylon material and aramid fibers. The higher si performance is combined with lower maintenance costs thanks to the particular characteristics that have improved above all the lubrication of the bushing and plug, while the shine of the tracks and the material of the rollers allow greater resistance to wear. The variator has been tested in the Italian Maxi Scooter Championship. Maxi speed control 12 rollers