Increased longevity and better chain guiding with the all new Eagle PowerLock connector with Flow Link technology Unique features and design also provide significantly improved wear resistance on the Eagle cassettes and rings The GX Eagle chain is constructed using the same link geometry and general manufacturing process as the XX1 and X01 Eagle chains, making it the ideal backup chain for XX1 and X01 riders 12sp 1/2x3/32 126L PowerLock Silver/GreyUPC/EAN/GTIN: 710845804755