- Clutch springs for Max Torque Clutch.
- Excellent tool to adjust engagement RPM and therefore the performance of the Max Torque Clutch on your go kart.
- Available in a variety of colors, and engagement speeds:
- Black (2900 RPM engagement)
- Green (2500 RPM engagement)
- Standard (2200 RPM engagement)
- Blue (1800 RPM engagement)
- Yellow (1500 RPM engagement)