Torque spring MALOSSI yellow K4.5 / L120mm for Benelli, Italjet, MBK, Yamaha 125, 150cc

Reinforced back pressure spring from Malossi for the rear converter for 125cc and 150cc maxi scooters with Yamaha / Minarelli engine. The counter pressure spring increases the contact pressure on the V-belt, so it no longer tends to slip and traction on the belt is increased. Useful for tuned vehicles and problems with slipping belts. Simply replace the original.

Unfortunately, Malossi does not specify for maxi scooters to what extent the pressure changes compared to the OEM counterpressure spring. However, the spring hardness (K) and the spring length are specified. Thus, the springs can at least be compared with each other. In principle, the following applies to large scooters:
1. Green counterpressure springs are softer than the OEM spring
.
2. All other springs are harder than the OEM spring
.
3. The higher the (K) value, the harder the spring
.
4. If the (K) value is the same, the longer spring is harder

Technical specifications: K4.5 / L120mm