POLINI’S latest version of its Hi-Speed variator has been created in order to achieve the best performance from the Kymco 400i engine.
The design of the new 12-roller Hi-Speed variator is said make the most efficient use of the engine’s horsepower even at low speed. Polini states that bench tests have shown that from 0 to 100km/h there is a marked increase in acceleration without sacrificing top speed, which also increases.
The patented lubricating system provides efficiency and performance without affecting reliability. The bush is made of special casehardened chromed-nickel steel, which is tempered and ground, and it has a big internal pocket to contain the grease, inside of which there is a special spring that allows a constant grease distribution on the pin even during the hardest conditions of use. The 12 rollers have a coating made of a new mixture of nylon and aramidic fibres.
A second version of the Hi Speed variator from Polini is being produced for use in both Kawasaki’s J300 and Kymco’s 300 4V scooters. For these applications the variator is available with a compression spring which is 30 percent harder than the original one, increasing the engine revolution rate when starting.
Also new from Polini is a new range of exhaust mufflers for 50cc scooters – the Original range that follows the lines of the stock designs and is EU homologated.
The exhausts feature a black painted steel body, while the internals offer a performance increase while maintaining a low noise level. A thermal-resistant bulkhead has been fitted outside to protect the rider and the scooter’s bodywork from excessive heat.
POLINI MOTORI
Alzano Lombardo (BG), ITALY
Tel: +39 035 2275 111
news@polini.com
www.polini.com
