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 holesFront hub: Formula DC-20* QR 9x100mm (Quick Release binder included)* Anodized black with Laser Etched logo* 6-Bolt ISO disc mount* Adjustable bearings* Rubber sealRear hubs options: Formula DC-22 (QR10x135mm) / DC-2241 (Boost QR 9x141mm)* Quick Release binder included* Anodized black with laser etched logo* 6-Bolt ISO disc mount* Adjustable bearings* Rubber seal* Compatible with 8-11 speed MTB (12 speed HG with 1.85mm spacer, not included)Assembled in North America by experienced wheelbuilders with Sapim stainless steel spokes (Black) and 14mm Brass Polyax Nipples (Black)