World-class professional racers proved that KMC Chain provides the right DNA leading to the championship! Next to our champions, it is important to offer a chain for all kind of riders. KMC's 11 speed chains are designed to work perfectly on 11x shifting systems. We have the perfect chain for all type of riders.KMC's X11 series offers great advantages on your current 11-speed system, such as very high durability, super light weight and easy to mount connecting link.* Compatible with all 11x systems* 1/2" X 11/128" - 118 Links* Pin Length 5,5mm* Nickel Coated (Silver)/Titanium Nitride coated (Gold)* Double X Durability* Super Light, 247g (118L)Comes with 11x missing link. **KMC X11SL Chain*** If you're running 11-speed, here's an alternative to a Campagnolo chain. There are two things that make this better than Campag's: it doesn't require an expensive tool to install it - you simply use the MissingLink and slide the two parts together - and at 228g it's 8g lighter. It also shifts as well as a standard chain. **Cycling Plus 9/10**