GY6 125-180cc Performance Camshaft A10

Performance Camshaft for GY6 125cc and 150cc Engines

The A10 Performance Camshaft is made to raise output in GY6 125-150cc scooters. Its profile is tuned to move air more effectively at high RPM, which helps top-end power. It is among the GY6 150cc scooter parts that can make a clear difference from mid-range through to the top of the rev range. Built with careful machining, it suits riders who want to upgrade how their scooter performs.

Updated Lobe Design

The cam uses a revised lobe shape that gives greater intake and exhaust lift. The intake lobe is 27.1mm and the exhaust lobe is 27.2mm. Together these changes improve airflow at higher engine speeds, which supports better overall performance.

Build Quality

Made from steel alloy, the camshaft offers strength and steady quality. A 16002/P6 rated ball bearing comes already fitted, helping keep alignment accurate and extending service life. The lightened 34-tooth timing sprocket has four weight-reducing cutouts, which lets the engine respond more quickly.

Specifications

• Intake Lobe: 27.1mm
• Exhaust Lobe: 27.2mm
• Bearing: 16002/P6 (pre-fitted)
• Timing Sprocket: 34-tooth, lightened
• Material: Steel alloy
• Certification: ISO 9001
• Fits: GY6-A 125cc and 150cc 4-stroke engines with QMI, QMJ or FMI engine codes, including big bore kits up to 180cc

Compatibility

Fits:

• GY6-A 125cc 4-stroke engines with QMI or QMJ codes (incl. 157QMJ, 152QMI, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ)
• GY6-A 150cc 4-stroke engines with QMI or QMJ codes (with 58.5mm, 61mm or 63mm big bore kits)
• Other QMJ and QMI engine codes

How to choose: Look at your engine code. It must contain QMI, QMJ or FMI. This camshaft will not fit QMK engines.

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