DLC TechnologyOur Titanium-Carbon-Nitride coated chains have an extremely hard surface, reducing friction and wear. As a result, they offer excellent shifting performance and a smooth transmission. Our high-end pin is another feature to reach the best possible durability.Features1/2" x 11/128"pin length: 5.2 mmnon-reusablecompatible with kmc, shimano, campagnolo & SRAM 12-speed chains More info