The RK 525ZXW is a premium XW-ring drive chain engineered for high-performance superbikes, sport, and race motorcycles running a 525 pitch chain system. With a tensile strength of approximately 46.4kN and advanced multi-lip XW-ring sealing, it delivers exceptional durability, low friction, and reliable performance under sustained high-stress riding conditions.
Key Features
- 525 pitch, 124-link full-length chain
- XW-ring multi-lip seal design for superior lubrication retention, reduced drag, and improved dirt resistance
- Tensile strength of approximately 46.4kN for high-performance and race applications
- Hardened steel plates with precision-machined sealed links
- Rivet-type master joining link included
- Available in natural (silver) and black scale finishes
What makes the XW-ring better than the O-ring?
XW-ring seals feature multiple sealing lips and internal lubrication reservoirs that retain grease more effectively than standard O-rings — reducing friction, lowering operating temperature, and extending chain service life significantly under high-load conditions.
Frequently Asked Questions
What bikes is this chain suited to? High-performance superbikes, sport, and race motorcycles use a 525-pitch chain system.
Is a joining link included? Yes. A rivet-type master link is included for chain installation.
Should I replace my sprockets at the same time? Yes. Always replace front and rear sprockets together with a new chain for even wear and maximum drivetrain longevity.
