Gates Super Premium 842-20-30 CVT Belt: GY6 Long Case
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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:
| Brand / Engine Type | Compatible Models & Codes |
|---|---|
| Vento | Phantom R4i (Non-Turbo), Phantom R3 |
| GY6 150cc (Long Case) | 157QMJ, 161QMK, 152QMI, 1P61QMK |
| Premium GY6 | YN1P57QMJ, BN157QMJ, JJ157QMJ, 1P57QMJ |
| Common Brands | Wolf, TaoTao, Ice Bear, Bintelli, Znen, & more |
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:
| 157QMJ | 161QMK | 152QMI | 1P61QMK |
| YN1P57QMJ | 1P52FMI | 154FMI | JJ157QMJ |
| 1P57QMJ | BN157QMJ | BN161QMK-A | Other QMJ, QMK, and QMI models |
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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