KMC 11sp Mountain & Road Chains. Features: X11EL : an extra light design with mud shedding cut-outs, double durability, and full nickel plated for use with 11 speed drive trains Optimized chamfer angles for superior stability in extreme chainlines, outer plate chamfering for minimized cassette tooth interface, and a double X-Bridge structure for improved shifting performance EL- Extra Light Double X-Durability For Shimano, Campagnolo and SRAM 11-speed derailleur systems Specifications: Speeds: 11 Speed Links: 116 Chain Width: 5.5mm Chain Connector: Missing Link (Single Use) Pin Type: Hollow Color: Gold Weight: 243g Included: Missing Link Master Link