Malossi Pulley Spring For Honda 50cc Scooters.
Made in Italy
The pulley spring determines the tension on the belt at the drive / clutch. The spring determines the torque transferred form the belt to the rear wheel. If your bike slows up hill or under load it is because the belt slips when under load, you need a stiffer pulley spring. Careful not to use too stiff a spring as it can slow your take off speed.
Malossi makes two springs for the Honda clutch, Red (297043.RO) and Yellow (297042.YO).
The Yellow spring has a 4.1 thickness rating, is slightly reinforced / stiffer than stock. The Yellow spring is great a medium tuned motor, say if you have a Variator, kevlar belt, performance exhaust or intake.
The Red spring has a 4.2 thickness rating, is meant for racing. It is much stiffer than stock. The Red spring is great for highly tuned motors, if you have variator, clutch springs, kevlar belt, performance intake, performance exhaust, aftermarket CDI, up gear kit.
|Malossi Pulley Spring: