Compatible with all standard 9 speed MTB and road systems, the 900 Series chains feature a unique outer plate shape for unmatched shifting precision. Stainless steel inner plates on the 9SX increase the life span by up to 20%. All chains are supplied with ConneX 9spd links for tool-free connecting. Brilliant nickel coated plates give this chain a precious look and offers long-life protection from corrosion.