RK Racing Chain 530XSOZ1-106 (530 Series) Steel 106 Link High Performance Street and Off-Road RX-Ring Chain with Connecting Link
The RK chain factory has made a running production upgrade with the "RX-Ring" seal design. Viewed in cross-section, the RK "RX-Ring" has two lubrication pools and seal points versus the single seal point/pool design of a regular O-ring chain.
