XX1 Eagle AXS Chain - 12-Speed, 126 Links, Rainbow The SRAM XX1 Eagle AXS 12-speed chain is a high-performance lightweight chain that features a unique design for significantly improved wear resistance on Eagle cassettes and rings. Key Features Eagle chain links have a smooth radius, with no sharp edges or chamfers which yields a significant reduction in noise, friction and wear PowerLock chain connector features Flowlink technology to provide superior chain-guiding and increased longevity Hollow pins feature a hardened chrome treatment for long-term durability