Rims: WTB ST i23 24" - ETRTO 507-23 - Inner width: 23mm - Disc Brake Only - Drilled for Presta valve - TCS 2.0 Tubeless System compatible - Solid Strip (included) - 32 holes Front hub: Shimano HB-MT400-B Boost - 15x110mm (Axle not included) - Center Lock (6-Bolt adapter included) - Angular contact bearings - Contact sealed hub Assembled in North America by experienced wheelbuilders with Sapim stainless steel spokes (Black) and 14mm Brass Polyax Nipples (Black)