Shimano ultegra 6800xt m8000 hg701 11sp chainsuper narrow lightweight 11 speed hg ev symmetrical design chain for smooth shifts and maximum durability featuresouter 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 givi