Chrome GY6 Performance Clutch Drum

Chrome Performance Clutch Drum for GY6 Engines

This chrome clutch drum is built for GY6 QMI152 and QMJ157 4-stroke engines in the 125cc and 150cc sizes. As engine speed rises, it helps lock the rear wheel into the drive, which supports smoother acceleration. It belongs to the GY6 scooter parts range and is a practical replacement for riders who notice clutch slip or engagement that comes in late. When it works as it should, pairing it with correctly adjusted clutch springs helps improve launch strength.

What This Part Does

The clutch drum carries power from the engine through to the rear wheel. A worn clutch often shows up as shuddering or slipping when you accelerate. Fitting this performance clutch drum can give more consistent, responsive engagement once revs climb.

Specifications

• Number of splines: 19
• Overall inner diameter: 125mm
• Overall outer diameter: 136mm
• Splined inner diameter (peak to peak): 13.5mm
• Splined inner diameter (valley to valley): 15mm
• Fits: GY6 125cc and 150cc 4-stroke engines (QMI152, QMJ157) and Honda Navi 110

Fitment

Compatible with:

• GY6 QMI152 125cc 4-stroke engine
• GY6 QMJ157 150cc 4-stroke engine
• GY6-based scooters, ATVs and off-road karts (125cc and 150cc)
• Honda Navi 110

How to choose: Check that the drum suits your engine by confirming 19 splines, a 125mm overall inner diameter and a 136mm overall outer diameter.

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