Shimano SM-CN900-11 Quick Link 11 Speed Set of 2The Shimano SM-CN900-11 Quick Link 11 Speed Set of 2 introduces chain QUICK-LINKs 2 to provide easier spot fixes. Engineered with tool-free assembly in mind for quick in the moment repairs. For rapid assembly of multiple chains a professional assembly tool (TL-CN10) is available. The SM-CN900-11 compatible with all Shimano 11 speed chains. Comes in a pack of 2 quick links.689228415058