The shimano hg701 ultegra 6800 xt m8000 11 speed chain is a super narrow lightweight 11 speed hg ev symmetrical design chain for smooth shifts and maximum durability the outer plate design has been developed to reduce the chance of chain suck and sil tec surface treatment technology ptfe plating on zinc alloy inner and outer links and rollers makes sure the chain stays running smooth and increases durability the inner plate has been developed for better contact with gears providing smoothe