GY6 50cc (139QMB) Clutch Springs

GY6 50cc Clutch Springs Built for QMB139 Engines

These GY6 50cc clutch springs are made to suit 50cc, 4-stroke QMB139 engines. Within the clutch assembly, they help control how the clutch engages and how the scooter performs. They belong to the group of GY6 50cc scooter parts you may need, and they are offered in three RPM ratings: 1000, 1500, and 2000. Picking the correct rating lets your scooter respond in a way that matches how you ride.

Available Spring Ratings

Each RPM rating is identified by a color. You can choose 1000 RPM (blue), 1500 RPM (yellow), or 2000 RPM (red) to tune the feel of your scooter. Every spring measures 31.5mm long and 8.4mm wide, so it lines up precisely with the engine.

Fitting and Compatibility Notes

Before swapping springs, be aware that certain newer scooter models come from the factory with larger springs in their stock clutches. Fitting the correct springs properly can lead to smoother clutch engagement and a more comfortable ride.

Specifications

• Size: 31.5mm long, 8.4mm wide
• Color Options: Blue (1000 RPM), Yellow (1500 RPM), Red (2000 RPM)
• Fits: GY6 50cc 4-stroke QMB139 engines with a clutch spring set, 1000, 1500 or 2000 RPM

Fitment

Compatible with:

• GY6 50cc 4-stroke QMB139 engines

Choosing the right spring: Measure your current clutch springs and check that they match the 31.5mm length and 8.4mm width. Then select your RPM: 1000 (blue), 1500 (yellow), or 2000 (red).

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