Shimano UG51 6/7/8 Speed Chain Quick LinkThis tough quick link is specifically designed for use with your Shimano 6, 7 or 8 speed chain as it delivers amazing smoothness and control. Designed to be quick and easy to install, this is a perfect choice of upgrade for riders who want a tough component for conquering wherever your next journey leads you. Features:Speed: 6, 7 and 8 speedChain Compatibility: ShimanoType: Non-reusablePart Number: SMUG51A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.