842-20-30 Racing CVT Drive Belt

Key Features

• Dimensions: 842mm Length x 20mm Width x 30° Angle
• Constructed with high-strength aramid fiber reinforcement for increased durability and performance
• Engineered for high mileage and reliable operation
• Resistant to high heat and oil degradation
• Designed for motorized continuously variable transmission (CVT) applications

Replaces / Cross-Reference Part Numbers

• 842-20-30
• MGVK842Q

Compatibility & Fitment

• Engine Type: Commonly used on 125cc and 150cc GY6 4-stroke long-case engines
• Vehicle Types: Fits a wide range of scooters, ATVs, and go-karts
• Common on models with 13-inch rear wheels
• Known to fit select models including Vento Phantom R3 (150cc) and Vento Phantom R4i (150cc)
• Note: Always verify the dimensions of your existing belt before ordering

When to Replace

• Visible signs of wear such as cracking, fraying, glazing, or missing teeth
• Experiencing belt slippage, loss of acceleration, or inconsistent engine RPM
• As part of scheduled preventative maintenance according to your vehicle's service manual

Installation Tips

• Ensure pulleys are clean and free of oil, glaze, and old belt residue before installation
• Install the belt with any directional markings pointing in the direction of rotation
• Do not use tools to pry or force the belt onto the pulleys, as this can damage the internal cords
• Allow for a brief break-in period of moderate use to seat the belt properly