Gates Super Premium 842-20-30 CVT Belt: GY6 Long Case

Maximum Durability: Gates Super Premium Reinforced Belt

Upgrade your transmission’s reliability with the Gates Super Premium CVT Drive Belt. Engineered for high-load applications, this belt is constructed with specialized EPDM rubber compounds and high-tensile cords to resist the heat and stretching that lead to "belt snap" in tuned GY6 engines. Whether you are commuting or pushing a big-bore kit, Gates provides the consistent grip and power transfer required for peak performance.

Technical Performance Features

• Advanced EPDM Construction: Designed to withstand extreme transmission temperatures, significantly extending service life compared to standard chloroprene belts.
• High-Tensile Cords: Minimizes belt stretch during hard acceleration, ensuring your variator and clutch stay in the optimal power band.
• Precision Cog Profile: Optimized for GY6 150cc pulleys to reduce internal friction and noise while maximizing airflow within the CVT case.
• Vento Phantom Optimized: The exact factory-spec upgrade for the Vento Phantom series, providing a smoother ride and better top-end stability.

Comprehensive Fitment Guide

The 842-20-30 size is the standard fitment for "Long Case" 125cc, 150cc, and 170cc 4-stroke scooters with 12 or 13-inch rear wheels, including:

Technical Specifications

• Length: 842mm
• Width: 20mm
• Groove Angle: 30 Degrees
• Material: Reinforced EPDM Compound

Mechanic's Note: This "842" belt is designed specifically for Long Case engines. If your scooter has a 12-inch or 13-inch rear wheel, this is likely your belt. If you have a 10-inch wheel, you likely need the shorter 743-20-30 belt. Always check your engine code (located near the rear shock mount) to confirm compatibility.

Part Number: 106-41
Manufacturer: Gates Corporation

157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:

Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.

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