The high end chain for 12 speed systems wit hKMC's GO wax. The diamond-like DLC coating reduces friction and brings one of the most durable and efficient chain. DLC 12x is approved for E-Bikes.Thanks to the innovative formula of KMC GO CHAIN WAX, the premium KMC chains treated with this wax offer unrivaled durability and efficiency. Compared to oil-based lubricants, waxed chains are less susceptible to dirt build-up, increasing drivetrain life and reducing cleaning intervals.The KMC X-Series was developed with the specific characteristics of the Shimano, SRAM and Campagnolo systems in mind. Thanks to precisely chamfered plates, the X-Bridge technology enables perfect shifting and smooth propulsion in all riding situations. The X Series enjoys the trust of many top athletes in professional cycling.KMC GO Wax BenefitsLong lasting: Once applied, the wax dries to form a protective barrier that outlasts oil based productsLess dirt: Waxed chains attract less dirt, minimising the common cause