Categoryleading durability and value, perfect for anything from XC to Enduro 30mm ID, 34mm OD double wall 6069 aluminum, tubeless and disc ready rim 4.5mm offset spoke bed for even tension, increasing wheel stiffness Trace cartridge bearing hubs, rear features 10degree engagement International Standard 6bolt disc rotor mount Built with double butted spokes and brass spoke nipples Shimano/SRAM 810sp, Shimano 11sp Mountain cassette compatible 1920g f/r set