The Polini Ceramic Air Speed Evolution fan wheel is made of iron and has a total weight of 258 grams incl. the plastic tab and the disc, this is especially an advantage if you drive on a track or find yourself in situations where there is a lot of change between the amount of gas the machine gets. With a heavier fan wheel, the engine can better maintain momentum and maintain its speed. The fan wheel is ceramic-treated and has a 12.5 degree incline. With the ceramic coating on the impeller, the scooter gets a better bite in the V-belt and thereby a more rapid acceleration, especially from a standstill. NOTE: For 13mm crankshaft axle .
Note: Supplied without a star to lock the fan wheel, so you must reuse the one you have or buy one separately. Fits 13mm crankshaft axle.