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