The Story
High Performance Clutch Assembly w/ Ventilated Clutch Bell for QMB139 50cc, 4-stroke engines.
Includes 1500RPM torque spring and 1000RPM clutch springs.
- Clutch Bell Inner Diameter: 107mm
- Clutch Bell Outer Diameter: 115mm
- Clutch Inner Diameter: 12mm
- Uses 6901 RS bearing
- Number of Splines (clutch bell): 22
- Splined Inner Diameter (peak to peak): 11mm
- Splined Inner Diameter (valley to valley): 12mm
- 1500 RPM Torque Spring
- 1000 RPM Clutch Springs
- Made in Taiwan

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
High Performance Clutch Assembly w/ Ventilated Clutch Bell for QMB139 50cc, 4-stroke engines.
Includes 1500RPM torque spring and 1000RPM clutch springs.
- Clutch Bell Inner Diameter: 107mm
- Clutch Bell Outer Diameter: 115mm
- Clutch Inner Diameter: 12mm
- Uses 6901 RS bearing
- Number of Splines (clutch bell): 22
- Splined Inner Diameter (peak to peak): 11mm
- Splined Inner Diameter (valley to valley): 12mm
- 1500 RPM Torque Spring
- 1000 RPM Clutch Springs
- Made in Taiwan



















