The RK Excel 420MXZ-120 Heavy-Duty MXZ Mini Racing Drive Chain is engineered for mini motocross and supercross racing applications. Built for demanding off-road use, this 420-size chain features Chromoly steel construction, seamless rollers and bushings, and oversized special-alloy pins for increased strength and dependable performance.
Designed for mini MX and SX motorcycles with engines up to 150cc and producing up to 30 horsepower, the RK Excel MXZ chain provides a durable drivetrain solution for competitive riding. Its 120-link configuration supports applications requiring a longer chain length, while the included clip-style master link simplifies installation and maintenance. Confirm the motorcycle manufacturer’s chain size and required link count before installation to ensure proper fitment.
The RK Excel 420MXZ-120 combines high tensile strength with race-focused construction for riders who need consistent chain performance in demanding off-road conditions. It is rated for a maximum tensile strength of 4,980 pounds and is manufactured for mini racing applications where strength, reliable engagement, and serviceability are essential.
Features:
- Size: 420 x 120 links
- Model: MXZ Mini Racing
- Brand: RK Excel
- Manufacturer Part Number: 420MXZ-120
- Vendor Part Number: 420MXZ-120
- Application: Mini motocross and supercross racing
- Construction: Heavy-duty Chromoly steel with seamless rollers and bushings
- Pins: Oversized special-alloy pins for added strength
- Tensile Strength: 4,980 pounds
- Maximum Engine Rating: 150cc off-road
- Maximum Power Rating: 30 horsepower
- Master Link: Clip type included