Hoca After-Market Performance Hoca GY6 50 Transmission Kit for QMB139 engines.
Hoca QMB139 Performance Transmission Specifications: - 1500 RPM Spring
- Spring Inner Diameter: 49mm
- Spring Height: 107mm
- Roller Weight Size: 16x13mm (8g)
- Variator Outer Diameter: 87mm
- Clutch Drum Number of Splines: 22
- Clutch Drum Spline Inner Diameter (peak to peak): 11.10mm
- Sliding Clutch Plate Outer Diameter: 119mm
- Drive Plate Number of Splines: 26
- Drive Plate Spline Inner Diameter (peak to peak): 13mm
- Drive Plate Outer Diameter: 113mm