Rims: WTB ST i23 26”* ETRTO 559-23* Inner width: 23mm* Drilled for Presta valve* TCS 2.0 Tubeless System compatible* Solid Strip (included)* 32 holesFront hub: Shimano HB-QC300* 9x100mm* Center Lock Disc Mount* Adjutable Cup & Cone* Contact sealed hub* Quick Release Binder includedRear hub: Shimano FH-QC300* 10x135mm* Center Lock Disc Mount* Adjutable Cup & Cone* Contact sealed hub and freehub body* Quick Release Binder included* 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)