Medium Contra Spring for 2-shoe Clutch - Blue

Blue springs. Coil thickness: 2.3mm

These contra springs are harder than the yellow ones.

These springs make the clutch grab at higher revs when starting and at the exit of a turn when rolling on the gas.

Working principle: a thicker spring wire will make the clutch grab at higher revs.
A thinner spring wire will make the clutch grab at lower revs. When the clutch grabs at higher revs, the 'take-off' will be snappier and punchier.
It is best to try all sizes to find the one that is best suited to your vehicle.

These springs can be mounted on all 2-shoe clutches.

Warning: there is not relation between the color of the springs mounted on Chinese clutches and the diameter of the coils.

These springs can be mounted on:
- Zocchi 2-shoe clutches,
- Bizetamotor (BZM) 2-shoe clutches,
- Chinese 2-shoe clutches