Rims: WTB ST i23 29''* ETRTO 622-23* Inner width: 23mm* Drilled for Presta valve* TCS 2.0 Tubeless System compatible* Solid Strip (included)* 32 holesFront hub: Shimano HB-QB400* 9x100mm* 6-Bolt Disc Mount* Sealed cartridge bearings* Contact sealed hub* Quick Release Binder includedRear hub: Shimano FH-QB400-HM* 10x135mm* 6-Bolt Disc Mount* Sealed cartridge bearings* Contact sealed hub and freehub body* Quick Release Binder included* Pawl ratchet system engagement* Compatible with 8/9/10/11 speed MTBAssembled in North America by experienced wheelbuilders using Sapim 14G Stainless Steel spokes (Black) and 14mm Brass Polyax Nipples (Black)