Kmc x11 el 11 speed chain a lightweight 11 speed chain featuring the double x durability and x bridge technology the chain is compatible with all 11 speed road and mtb systems and is also non directional in design features 12 x 11128 114 links pin length 565mm double x durability titanium nitride gold coated x bridge uses specially designed outer plates to enable fast smooth and precise shifts extra light 247 gramskmc chainsfor many years kmc has enhanced the technology behind bicycle