Rims: WTB ST i30 29''* ETRTO 622-30* Inner width: 30mm* Disc Brake Only* Drilled for Presta valve* TCS 2.0 Tubeless System compatible* Solid Strip (included)* 32 holesFront hub (-01): SRAM MTH 716* 15x110mm* 6 Bolt Disc Mount* Sealed cartridge bearingsRear hub (-02): SRAM MTH 746 HG* 12x148mm* 6 Bolt Disc Mount* Sealed cartridge bearings* 2 pawls external driver* 21 points of engagements* Compatible with 8/9/10/11 speed MTBRear hub (-03): SRAM MTH 746 XD* 12x148mm* 6 Bolt Disc Mount* Sealed cartridge bearings* 2 pawls external driver* 21 points of engagements* Compatible with SRAM XDAssembled in North America by experienced wheelbuilders with Sapim Race spokes (Black), 14mm Brass Polyax Nipples (Black)