Prime 9 chains have chamfered shifting edges, solid plates and solid pins to safeguard durabilityThe Box Two chain`s nickel plating adds both corrosion and wear-resistanceModern 9/10/11sp narrow/wide chainring compatibleCompatible with all Prime 9 drivetrains9sp1/2x11/128126LSilver350gUPC/EAN/GTIN: 639266097297