Aluminum fan impeller from Casa Performance for all Lambretta Variotronic pole wheels. Increases the flow speed of the air at 7500 rpm from 84 to 108 km/h!
Advantages:
25 % more flow rate with the same flow resistance coefficient (=no loss of engine power)
Cylinder runs significantly cooler, ideal for high continuous loads (highway, racing)
Significantly more stable than the original plastic fan blade (no breakage at high engine power/speeds)