This X11EL bike chain from KMC is the link between your trusty steelros and a smooth bike ride. The chain is compatible with all 11-gear systems. Includes a MissingLink (locking link) for easy opening and closing of the chain. X-SERIES The KMC X-Series was developed with the specific features of the Shimano, SRAM and Campagnolo systems in mind. Thanks to precisely chamfered plates, the X-Bridge technology ensures perfect shifting and smooth drive in all riding situations. The X-Series enjoys the trust of many top athletes in professional cycling. Features: Compatible with all 11-gear systems Perfect shifting thanks to Double X-Bridge Contains a MissingLink or locking link Grooved inner and outer plates High in durability ++++ Specifications: Color: silver Color designation: Nickel Plated Silver Code: BX11ELN18 Material: Steel Number of speed: 11V Chain size: 1/2 x 11/128 inch Chain length: 118 links Pin length: 5.65 mm MissingLink: yes (master link) Weight per 110 links: 251 grams Weight: approx. 0.3 kg