- KMC introduces a new entry level model, X10 grey, an entry level 10 speed chain featuring high durability, X-Bridge and Non-Directional use KMC 10-speed chains are compatible with all road or MTB 10-speed drive trains. The X-Bridge system provides smoother and more precise gear shifting to give you absolute confidence when you're out of the saddle and you need your drivetrain to be perfect. * 1/2" X 11/128" - 116 Links, pin length 5,88 mm * Shimano, Sram and Campagnolo compatible (Including all 10X MTB systems) * Non-Directional * Hi-Performance * Extremely Durable