Universal Parts QMB139 Performance Clutch

Universal Parts Performance Clutch for 50cc QMB139 4-stroke engines. Comes with 2000 RPM springs installed.

• Inner Diameter (Flat Side to Flat Side): 24mm
• Inner Diameter (Round Side to Round Side): 28mm
• Overall Outer Diameter: 105mm
• 2000 RPM Clutch Springs