GY6 50cc (139QMB) Performance Clutch - 2000 RPM

Performance Clutch for GY6 50cc Engines

This performance clutch suits GY6 50cc engines, in particular the 139QMB model. Its 2000 RPM clutch springs aim to sharpen engagement and throttle response off the line. Keeping this component in good shape matters for your scooter's performance. It is one of the simpler GY6 50cc scooter parts you can fit yourself at home.

How It Works

The clutch transfers power to the rear wheel once engine speed climbs. When the clutch wears down, you might notice shuddering or slipping. Firmer springs raise the RPM at which the clutch engages, which can help acceleration.

Specifications

• Inner Diameter (Flat Side to Flat Side): 24mm
• Inner Diameter (Round Side to Round Side): 28mm
• Overall Outer Diameter: 105mm
• Clutch Springs RPM: 2000
• Fits: GY6 50cc, 60cc, 80cc and 100cc QMB139 4-stroke engines

Fitment

Compatible with:

• GY6 50cc QMB139 4-stroke engines
• GY6 60cc QMB139 4-stroke engines
• GY6 80cc QMB139 4-stroke engines
• GY6 100cc QMB139 4-stroke engines

Choosing the right size: Before buying, check the clutch bell's inner diameter. It is either 24mm flat side to flat side or 28mm round side to round side.

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