SRAM XX1 Eagle AXS Chain - 12-Speed 126 Links RainbowSRAM 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. 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