A SRAM PowerLock masterlink is the fast and secure way to install your new SRAM chain. It is important to note that the SRAM PowerLock links are intended for one-time use, so having a spare on hand is a must. Tool-less installation means that the SRAM PowerLock link is easy to use with most drive trains. SRAM’s PowerLock Links are available for 8, 9, 10 or 11-speed chains. Their tool free installation makes installing a chain in your home or on the trail a breeze.