Polini typical high quality aluminium cylinder with Nikasil coating. The Polini kit with the considerable bore of 67mm gives the 125/150cc Leonardo and Scarabeo models a significant power and torque increase. Polini indicates a power increase of up to 30% just by the cylinder. This power increase is available over the whole rev range, making even the steepest mountains less frightening and the ride for two even more enjoyable.
The Nicasil coating is made of nickel with very fine silicon carbide particles, this coating is very hard on one hand and on the other hand it has a very low frictional resistance, minimizing the loss of power. Thanks to the special Close - Deck process an optimum of cooling and thermal stability is achieved. In addition, undesirable turbulence of the cooling water in the cylinder is largely eliminated.
Another improvement is the Multi Layer Steel (=MLS) cylinder head gasket, which contains a highly fluorinated technopolamer that withstands even the most extreme temperature pressures.
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