Campagnolo's 11-Speed chain is designed to be used with Centaur or any other 11-speed Campagnolo groupset. The new design of the Campagnolo 11 chain with wider links improves shifting performance and efficiency, while reducing the noise of chainring and sprocket engagements. The Ultra-Link connectors provide maximum performance to Campagnolo transmissions. The enhanced efficiency and advanced anti-friction treatment of this chain will mean a longer life for your chainrings and sprockets.**Technical Specifications:*** Suitable for any Campagnolo 11-speed Groupset* 1/2 x 3/32, 114 Links* Ultra Link System for top-level fluidity, high strength chain connection, greater safety and longer chain life* Silver colour, Steel* Advanced Nickel-PTFE anti-friction treatment, for reduced friction, smooth pedalling, quiet operation, greater efficiency and longer chain life* Special steel link pins designed to adhere perfectly to gears and sprocket teeth providing maximum fluidity, reduced friction and improved chain life* Requires the Campagnolo Ultralink UT-CN300 Chain Tool for installation**Maximum ratios for chains:** **(Please note these are based on the largest front chainring to the largest rear sprocket)** CPB670A: 53t-34t / CPB670B: 53-32 or 50-36 / CPB670C: 53-29 or 50-32 / CPB670D: 53-25 or 50-27* Weight: 256g