The Campagnolo's Chorus 11 Chain is 11-speed optimized, with robust nickle-plated steel links and a low-friction Ni-PTFE treatment for crisp-shifting performance. In fact, the only difference between the Chorus 11 Chain and its Record and Super Record counterparts lies in solid pins that connect the links, instead of the hollowed-out pins found on the aforementioned chains. Please note that installing this chain requires Campagnolo's UT-CN300 chain tool.