GY6 Performance CVT Variator & Roller Tuning Kit

Performance Variator and Roller Tuning Kit for GY6 Vehicles

This racing variator and roller tuning kit is built to improve the output of a GY6-powered scooter, ATV, or go-kart. The kit includes a full drive pulley assembly, so you can adjust acceleration and top speed to suit your riding. Among the GY6 scooter parts available, it offers several roller weight choices for riders who want to dial in their setup.

Roller Weight Options

Three roller weight sizes come in the kit: 12g, 13g, and 14g. Lighter 12g rollers tend to speed up acceleration but give up some top end. Heavier 14g rollers push top speed higher while accelerating more slowly. The range lets you pick the balance that fits how you ride.

Construction and Compatibility

The variator uses a modified ramp plate designed to raise peak power output. Its nylon rollers include a copper core, which gives them a longer service life than standard OEM weights. The kit suits a range of GY6 engines, so it can be added to many performance builds.

Specifications

• Variator OD: 115mm
• Variator ID: 24mm
• Bush OD: 24mm
• Bush ID: 15mm
• Bush Length: 51.5mm
• Roller Size: 18x14mm
• Fits: GY6 engines (125cc-169cc): Buddy 125/150/170i, Hooligan, Blur 150, ZNEN, Icebear, X-Pro, HHH

Fitment

Fits:

• Buddy 125, 150 and 170i
• Hooligan
• Blur 150
• ZNEN 150cc scooters
• Icebear 150cc scooters
• X-Pro 150cc scooters
• HHH 150cc scooters
• Vitacci 150cc scooters
• GY6 150cc scooters
• GY6 ATVs, side-by-sides and go-karts
• GY6 engines 152QMI, 157QMJ, 161QMK (125cc-169cc)
• GY6 engine codes 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A

How to choose: Make sure the variator bush ID (15mm) matches your crankshaft and the variator ID (24mm) matches your clutch. For roller weights, pick 12g if you want quicker acceleration, or 14g if you want a higher top speed.

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