BikeMaster 525x120 BMXR O-Ring Chain - Yellow

Ideal OEM replacement offering 1.5 to 2x longer wear resistance than regular O-ring chains. Each refined component, designed with computer analysis, provides higher tensile strength. Specially controlled heat treatment means tougher material and more durability. Q4 seal ring and reinforced pin and roller provide superior wear resistance, higher impact resistance and endurance. Q4 seal ring offers less friction, which minimizes power loss, almost half that of standard O-ring chain.

• Max engine size of 1,100cc street/900cc offroad
• Includes rivet master link

The BikeMaster BMXR 525x120 O-Ring Chain is an ideal OEM replacement for street and off-road motorcycles requiring dependable power transfer and long-lasting performance. Designed to provide approximately 1.5 to 2 times the wear resistance of a regular O-ring chain, this chain uses refined components developed through computer analysis to deliver increased tensile strength and durability. Its yellow finish adds a distinctive appearance while maintaining the rugged performance expected from BikeMaster powersports components.
Specially controlled heat treatment strengthens the chain material for improved endurance under demanding riding conditions. The reinforced pins and rollers enhance wear resistance, impact resistance, and overall service life, making the BikeMaster part number BKM197473 a practical choice for motorcycle maintenance and replacement applications. The chain is engineered for motorcycles up to 1,100cc on the street or 900cc for off-road use, helping provide reliable performance across a broad range of powersports applications.
The Q4 seal ring helps reduce friction compared with standard O-ring chain designs, minimizing power loss and supporting efficient engine-to-wheel power transfer. A rivet-style master link is included for secure installation when properly fitted with the appropriate tools and procedures. For best results, follow the motorcycle manufacturer’s specifications for chain fitment, installation, adjustment, and lubrication. The BikeMaster BMXR chain combines enhanced sealing, reinforced construction, and long-wearing materials in a dependable replacement solution for riders who demand consistent drivetrain performance.

Features:

• Wear resistance: Provides approximately 1.5 to 2 times the wear resistance of a regular O-ring chain.

• Application: Designed for motorcycles up to 1,100cc for street use or 900cc for off-road use.

• Q4 seal ring: Reduces friction to help minimize power loss compared with standard O-ring chain designs.

• Construction: Computer-analyzed components, reinforced pins, and reinforced rollers provide increased tensile strength, impact resistance, and durability.

• Heat treatment: Specially controlled heat treatment produces tougher chain material for improved endurance.

• Master link: Includes a rivet-style master link for installation.

• Finish: Yellow chain finish provides a distinctive appearance.