Extremely strong. Incredibly precise. SRAM's PowerChain II increases front and load shifting performance without sacrificing rear shifting precision. The Step2 riveting process increases the Push Pin Power for increased strength and durability. For 9-speed SHIMANO/SRAM and other drivetrains Our most economical 9-speed PowerChain II High quality shifting performance Chrome Hardened rivet pins for increased durability, gray colored plates, and our PowerLink "No weakest link" closing system Outer/Inner links finish: Polished Chain connector: PowerLink Chain length: 114 links