Description
The BikeMaster 520×120 BMXR O-Ring Chain in Orange is engineered for high durability and performance. This chain features O-ring seals to help retain lubrication and guard against dirt and debris. Component designs are optimized with computer analysis for higher tensile strength, while specially controlled heat treatment delivers tougher materials for extended lifespan. The reinforced roller increases impact resistance and overall durability.
Note: This chain must be correctly matched to the machine size and power output. Improper selection or installation can result in chain failure, machine or property damage, serious injury, or death. Installation should be performed by a professional if you are unsure of fitment or installation procedures.








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