
This part being universal, it may require adaptations
Set of 6 MALOSSI rollers designed for scooter variators — manufacturer reference 66 9420.V0. Made from CPT with a specific formula, these rollers provide a reliable and durable technical replacement compared to the original. Their finish and tolerances allow for a clean installation in the movable pulley of the variator.
Features
Operation
The rollers utilize centrifugal force: as they spin, their mass pushes the pulley outward and alters the ratio transmitted to the variator. Lighter rollers delay the rise in the transmission's RPM and promote a higher cruising RPM, while heavier rollers cause an earlier lock-up. Thus, the choice of weight affects the RPM range at which the engine operates.
These Malossi rollers are intended for riders looking to fine-tune the behavior of their primary transmission without modifying other components. For optimal adjustment, pair them with a variator diagnosis and consider the usage (city, road, load).