Description
Polini Ceramic Air Speed pulley for Piaggio
High-end Polini Evolution 3 Ceramic Air Speed pulley. The pulley has a special coating with a rough surface that provides optimal power transmission. A lightweight plastic fan wheel provides the necessary cooling.
Suitable for Piaggio 50cc models from 1998 onward, such as the Piaggio Zip, Typhoon, NRG, Gilera Runner, Stalker, Storm, Vespa LX50, and Aprilia SR50 from 2004 onward...
Details front pulley Polini Evo for Piaggio
- Polini Air Speed Evolution 3 pulley
- Material: coated aluminum
- Plastic fan wheel included
- For Piaggio 50cc 2T/4T from 1998
CVT Pulleys
Pulleys are an integral part of the CVT system on scooters and mopeds with automatic CVT transmission.
The continuously variable transmission consists of fixed and moving pulleys, the V-belt rises and falls between them depending on the engine speed, changing the speed of the vehicle.
When should you change a pulley?
There are two reasons for replacing pulleys:
- Wear and tear. Although pulleys are relatively durable, the constant sliding of the V-belt can deform the surface.
- Tuning. Different pulley angles and diameters can improve the handling of scooters or mopeds.
Note: A CVT variator can only do a good job when CVT pulleys as well as torque drive pulleys are compatible with each other. Pitches and diameters of the individual elements must be matched so that the V-belt can glide evenly.