The RK 520 MXZ5 is a high-performance racing chain engineered for demanding off-road and motocross applications. This gold-finished chain includes 120 links and is designed to fit compatible 520-size chain and sprocket systems. Manufacturer part number GB520MXZ5-120 and vendor part number GB520MXZ5-120 identify this specific RK chain configuration.
Built with chromoly steel components, the MXZ5 features seamless rollers and bushings for dependable performance under severe riding conditions. Reinforced chromized pins provide more than twice the wear resistance of standard non-sealed chain pins, helping extend service life during competition use. Every component is heat treated using RK's exclusive Heat Induction Transfer process to improve strength and durability.
The RK 520 MXZ5 uses a less tacky grease formulation that is less likely to attract dirt and debris, helping maintain smoother operation in dusty and muddy environments. This chain is intended for racing and off-road use and is not recommended for street applications. Confirm that your motorcycle or powersports vehicle requires a 520 chain with 120 links before installation, and verify compatibility with the manufacturer's specified sprocket setup.
Features:
- Size: 520 chain with 120 links
- Model: MXZ5 racing chain
- Brand: RK
- Manufacturer part number: GB520MXZ5-120
- Vendor part number: GB520MXZ5-120
- Construction: Chromoly steel components with seamless rollers and bushings
- Pin design: Reinforced chromized pins provide more than twice the wear resistance of standard non-sealed chain pins
- Heat treatment: RK Heat Induction Transfer process applied to all components
- Lubrication: Less tacky grease designed to attract less dirt and debris
- Fitment: Compatible with vehicles using a 520 chain and matching sprocket system with 120 links
- Application: Racing and off-road use; not recommended for street use