The Naraku 107mm Sport Clutch is a 3-shoe performance clutch for 139QMB-based 50cc 4-stroke and compatible 2-stroke engines. It engages 1,500–2,000 RPM higher than a stock clutch, allowing the engine to build more power before the clutch locks in — resulting in faster take-off from stops and more aggressive acceleration. Kevlar-reinforced friction pads and red performance springs. Black anodized aluminum construction with Naraku logo on each shoe. Fits Genuine Buddy 50, Roughhouse 50, Honda Jog 2T, Honda Dio 2T, and all 139QMB-engined scooters.
- 3-shoe design with Kevlar-reinforced friction pads
- Engages 1,500–2,000 RPM higher than stock for faster take-off
- Red performance springs — higher engagement RPM than stock springs
- 107mm outer diameter
- Black anodized aluminum construction
- Fits 139QMB 50cc 4T and compatible 2T engines
Specifications
- Outer Diameter: 107mm
- Shoes: 3-shoe
- Friction Material: Kevlar-reinforced
- Engagement: 1,500–2,000 RPM above stock
- Application: 139QMB 50cc 4T and compatible 2T engines
Compatible Engine Codes
| 139QMB Engine Codes |
| 139QMA | 139QMB | 1P39QMB | 1P39QMA-2 |
| YN139QMB | JJ1P39QMB | 139FMA-2 | BD1P39QMB |
| BN139QMB | 147QMD | Other QMA models | Other QMB models |
Compatibility
| Make | Model / Engine |
| Genuine | Buddy 50, Roughhouse 50 |
| Honda | Jog 2T (vertical Minarelli) |
| Honda | Dio 2T (vertical Minarelli) |
| Various | All 139QMB/QMA 50cc 4T scooters |
