SSP-G QMB139 50cc Performance Clutch Set
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SSP-G's High Performance Clutch Assembly with Ventilated Clutch Bell fits 139QMB 50cc, 4-stroke engines.
Specifications:
- 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
- Includes 1500 RPM Torque Spring
- Includes 1000 RPM Clutch Springs
Compatibility:
139QMB-based 50cc / 80cc engines with the following engine codes:
| 139QMA | 139QMB | 1P39QMB | 1P39QMA-2 |
| YN139QMB | JJ1P39QMB | 139FMA-2 | BD1P39QMB |
| BN139QMB | 147QMD | Other QMA models | Other QMB models |
Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.
About SSP-G: Scooterworks USA is the exclusive distributor of SSP-G Performance Parts! All SSP-G parts are sourced from top manufacturers in Taiwan for the best combination of performance, quality and cost.
Shipping information
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Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.