The KMC X12 Chain 12S 126 Links - Silver is a high-quality chain designed for both road and off-road cycling. With a size of 1/2" X 11/128" and a pin length of 5.2mm, this chain is compatible with both SRAM and SHIMANO 12-speed groupsets. It is also non-directional, making it easy to install and use.The double X bridge design of this chain ensures perfect shifting, making it a great choice for cyclists who demand precision and reliability. The chain hitch included with the chain makes it easy to attach to your bike, while the MissingLink ensures that you can quickly and easily remove the chain for cleaning or maintenance.Made from high-quality steel and finished with a nickel plating, this chain is built to last. With a weight of just 268g and a length of 126 links, it is a great choice for cyclists who want a durable and reliable chain that will perform well in a variety of conditions.