EVOLUTION HI-SPEED POLINI VARIATORS
FOR PIAGGIO AND YAMAHA MINARELLI
The never ending evolution and, in particular, the power increase of the Polini engines used during the competitions, both for scooters equipped with Piaggio engines and Minarelli ones, persuaded the of the racing department’s managers to develop some parts of the already performing Evolution Hi-Speed:
- new piston made of DLC “diamond light carbon” with 22mm diameter, to grant a perfect sliding and to reduce deformation effects.
- steel bush with grease lubrication through 2 oil-seals.
These features are of prime importance when using engines with many HP since they increase the consistent performance during the time.
The kit includes a spring with a higher charge, increased of 8%, complete with Evo Slider, the anti-torsion system that eliminates any solicitation problem of the spring and favors the sliding.
Better performance as per acceleration and maximum speed, but also lower maintenance costs: the new parts, the better lubrication of the bush and of the pin, the satin finish of the slides and the quality of the rollers material allow a better resistance to wear, for the benefit of the reliability.
Evolution Hi-Speed Polini variators:
Item: 241.748 Yamaha Ø 16 – 12,5°
Item: 241.749 Piaggio Ø 16 – 12,5°
Item: 241.750 Piaggio Ø 14,8
Item: 241.751 Piaggio Ø 16
Item: 241.752 Yamaha / Minarelli Ø 13
Item: 241.753 Yamaha / Minarelli Ø 16
Public price: Euro 114,00 + VAT
100% Made in Italy