Vapour GXC wheels are the lightest in the Vapour range. Crafted for the longest distance gravel races, ultra-distance adventure riding, XC racing, as well as lightly loaded Touring Built with a 21mm internal width rim, the Vapour GXC wheel is ideal for Gravel, Road plus and narrower MTB tires Along with a lightweight and dependable rim, Vapour GXC wheels utilize an all new GXC hub, featuring instantaneous 120 point engagement, Center Lock, sealed bearings and wide spaced flanges for increased stiffness and durability Built with double butted Jbend spokes to ensure should the worst happen, you have a great chance of being able to fix your wheel and carry on your adventure Supplied pretaped, the Vapour GXC is tubeless ready from the box Compatible with HG splined Shimano/SRAM 11sp cassettes. Also compatible with Shimano/SRAM 810sp cassettes with spacer