The Shimano CN-M7100 12-Speed Chain (126 Links) is a lightweight Hyperglide+ chain designed for smooth, precise shifting on 12-speed drivetrains. This CN-M7100 chain features Sil-Tec PTFE coating for reduced friction and increased durability. The outer plate design minimises chain suck, while the included Quick Link allows tool-free assembly. Buy your bike chains at Halfords, the UK's largest bike accessories retailer.