Campagnolo record 11 speed chainthis 11 speed chain from campagnolo has been engineered to provide a smooth, frictionless performance whether you're hitting the tarmac or trails'. '.strtoupper('c')ampagnolo has reduced the width of the chain to 5.5 millimetres'. '.strtoupper('t')he pins are hollow inside to reduce the weight while maintaining strength'. '.strtoupper('i')t is necessary to use tool ut cn300 to fit this chain'. '.strtoupper('t')he ni ptfe treatment ensures smoothness and long life'. '.strtoupper('t')he ultra linktrade fastening system guarantees strength and operation with the new 11 speed sprockets.featuresrequires ultra linktrade for 11 speed chainlightened links11 speed outer linknew material for outer linkultra linktrade fastening systemexternal links in special new steelni ptfe anti friction treatmenthollow pinsuse road mountain bikelength 114 linkswidth 5.5mmcompatible with campag record campag super record compatibleweight 256g 2.12g per linkplease note for safety reasons campagnolo recommends that this chain is fitted with the use of ut cn300 chain tool.buy campagnolo components from chain reaction cycles, the world's largest online bike store.