Description
CVT Drive Belt for Long-Case GY6 125cc and 150cc Engines
The CVT Drive Belt sized 842-20-30 serves as a factory replacement for Long-Case GY6 engines, specifically designed for 125cc and 150cc models. This part is important for restoring smooth shifting and maximum speed capabilities in your scooter. It is one of the GY6 scooter parts that every owner should consider replacing during routine maintenance to ensure reliable performance and power transfer from the variator to the rear clutch.
Construction and Performance
This drive belt is manufactured to meet original equipment specifications, making it a direct replacement that ensures accurate gear ratios and responsive acceleration. The durable rubber compound used in its making is engineered to withstand high friction and heat, minimizing the risk of cracking or glazing over time. The 30° groove angle is specifically optimized to improve grip and performance within standard GY6 pulleys.
Installation Considerations
When replacing the drive belt, it is advisable to inspect the variator slides and roller weights for wear. This will help maintain smooth operation throughout the transmission's range. The 842mm belt is tailored for Long-Case engines that typically feature 12-inch or 13-inch rear wheels. If your scooter has a smaller wheel size, consider checking for alternative belt sizes like 743 or 835.
Specifications
- Length: 842mm (33.15")
- Top Width: 20mm
- Groove Angle: 30°
- Engine Type: GY6 125/150cc (Long Case)
- OEM Part Number: 842-20-30
Fitment
This drive belt is compatible with a range of Long Case GY6 125cc and 150cc engines, including:
- Vento: Phantom R3 (150cc) '03
- Vento: Phantom R4i (150cc) '04-'06 (Non-Turbo)
- Chinese Brands: BMS, Jonway, Roketa, and SunL 150cc "Long Case" units
- Universal: Most 150cc scooters with 12" or 13" rear wheels
Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.
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