KMC chains are very slim designed (lean construction). In addition to a lower weight, this design convinces with its very smooth running and less chain slamming. The 11-speed chains with their width of just 5.65 mm are among the narrowest in their class and forgive it even when the rear derailleur is no longer 100% precisely adjusted. Features The chain is symmetrical and thus not directional bound.. X-bridge - highest switching performance, not directional bound ensures smooth shifting in every direction.. Weight-reduced inner and outer straps. Rivets: full rivets (reinforced rivet connection). Specification Material: steel. Dimension: 1/2 "x11 / 128". Compatibility: Shimano, SRAM and Campagnolo 11-speed. Number of members: 118. Weight: 256 grams.