The KMC X11 Chain 11 Speed offers an extremely durable 11 speed chain, with nickel plated outer links. New fully recyclable plastic packaging with a specific compartment for a missing link.1/2" x 11/128".Pin length: 5.65 mm.118 links.Weight: 257 grams.Colour: silver/black.Hi-performance.Extremely durable.Non directional.Half nickel plated.For shimano, campagnolo and SRAM 11-speed derailleur systems. More info