Campagnolo's 11-Speed Chorus chain is designed for fluidity, smoothness and noise reduction. Its Ultra-Narrow 5.5mm width design fully meets the quality and performance standards of 11-speed and is therefore suitable for use with any Campagnolo 11=speed groupset. Its 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* 114 Links, 5.5mm wide* Ultra Link System for top-level fluidity, high strength chain connection, greater safety and longer chain life* Silver colour* External links constructed from a special new steel* Advanced Nickel-PTFE anti-friction treatment, for reduced friction, smooth pedalling, quiet operation, greater efficiency and longer chain life* Requires the Campagnolo Ultralink UT-CN300 Chain Tool for installation* Weight: 242g (based on 108 links) / 2.24g per link