SSP-G QMB139 Performance Transmission Kit
SSP-G After-Market Performance GY6 50 Transmission Kit for QMB139 engines. Please Note: If installing on a Genuine Buddy 50 or Roughhouse 50 you must reuse the stock drive face.
Please see our Warranty & Returns Policy.
- 1500 RPM Spring
- Spring Inner Diameter: 49mm
- Spring Height: 105mm
- Roller Weight Size: 16x13mm (8g)
- Variator Outer Diameter: 89mm
- Clutch Drum Number of Splines: 22
- Clutch Drum Spline Inner Diameter (peak to peak): 11.10mm
- Sliding Clutch Plate Outer Diameter: 119mm
- Light Weight Aluminum Drive Face
Genuine Buddy 50, Genuine Roughhouse 50, Kymco Agility 50, QMB139 50cc/49cc , Various unlisted makes/models