Medium Contra Spring for Scooters 50cc 2-stroke - Yellow Description

This contra spring can increase the durability of your belt. It is suitable for the clutch of Chinese scooters 50cc 2-stroke (1E40QMB).

When you customize your scooter by changing the clutch springs, the carburetor, and the exhaust, the belt undergoes more stress, it tends to slip on the pulley halves.

The use of this contra spring will tighten the drive belt which will last longer.

After an engine customization, it is imperative to replace the contra spring.

Torque on the clutch: 1500nm