Key Features:Super narrow lightweight 11-speed HG-EV symmetrical design chain for smooth shifts and maximum durabilityOuter plate design has been developed to reduce the chance of chain suckSil-Tec surface treatment technology (PTFE plating) on inner and outer links that is smooth running and increases durabilityZinc-Alloy plated outer linksThe inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling, increased rigidity and near silent running5.62 mm chain width, optimised for 11-speed Super Narrow HG-EV drivetrainsComes complete with Quick Link which enables fast tool free chain assemblyAverage weight 257 grams