Malossi Roller Set 19x17mm 7.7g - 6 pieces (Manufacturer's reference: 66 9456.E0)
This Malossi roller set is designed for scooter variators as a technical replacement part. Made from CPT with a specific formula, these rollers are engineered for consistent performance in the movable pulley and offer controlled wear to maintain the transmission geometry.
Operation
The rollers utilize centrifugal force: when rotating, their mass pushes the movable pulley, altering the gear ratio and the timing of gear changes. Heavier rollers slow down the engine's RPM increase and promote a shorter gear ratio, while lighter rollers allow the engine to stay at a higher RPM.
Usage Tips
- Install all 6 rollers for a complete replacement to ensure optimal balance.
- Select the weight based on the desired RPM range and riding style (torque, response, acceleration).
- Check the pulley and belt during replacement to avoid vibrations or premature slipping.
Main Features
- Diameter: 19 mm
- Width: 17 mm
- Unit weight: 7.7 g
- Number of rollers: 6
- Brand: MALOSSI