24mm internal carbon rims optimized for gravel tires 35mm and larger Vault hubs feature larger sealed cartridge bearings on a wider bearing stance 60 points of engagement at just 6degrees for instant acceleration Sapim double butted straightpull spokes with alloy nipples Center Lock disc rotor compatible 11sp road: Compatible with HG splined Shimano/SRAM 11sp cassettes. Also compatible with Shimano/SRAM 810sp cassettes with spacer XDR is 1.85mm longer than XD Driver, occupies the same space as an 11speed HyperGlide road driver