This is the Campagnolo Chorus 11-Speed Chain. Fluidity. Smoothness. Noise reduction. Campy's 5.5mm Chorus chain delivers the qualities you demand from a chain, and fully meets the performance standards of 11-speed groupsets. The strength of the treated steel links is absolute, and the Ultra-Link(TM) closure system guarantees safety and the long chain life. NOTE: Dear customer, please consider that this locking pin can only be effectively closed with tool UT-CN300. Features: ULTRA-LINK(TM) CHAIN CONNECTING SYSTEM: High strength chain connection - greater safety and longer chain life ULTRA-LINK(TM) CHAIN LINKS: Designed to give better performance to Campagnolo(R) drivetrains Greater durability of the gears and sprockets, and maximum efficiency in the transmission of power Solid pins Use chain tool for 11-speed For use with 11-speed drive trains only Specifications: Speeds: 11 Speed Links: 114 Chain Width: 5.5mm Chain Connector: Pressed Pin Pin Type: Solid Color: Silver Weight: 255g