Rims: WTB CZR i30 Carbon 29''* ETRTO 622-30* Inner width: 30mm* Made from Torayca T700 UD carbon fiber, striking a fine balance between stiffness and compliance* Asymetric and angled spoke hole drilling distributes spoke tension more evenly* Externally reinforced spoke bed* Drilled for Presta valve* TCS 2.0 Tubeless System compatible* Solid Strip (included)* 32 holesFront hub: Sram 900 Boost* 15x110mm Thru-Axle (Axle not included)* 6 Bolt Disc Mount* Sealed cartridge bearingsRear hub: Sram 900 XDR Boost* 12x148mm Thru-Axle (Axle not included)* 6 Bolt Disc Mount* Sealed cartridge bearings* Sram Double Time 4-Pawl Ratchet Freehub, 52 Points of Contact, 6.9 degree engagement angle* Compatible with 11,12 speed XD (1.85mm spacer included)Sold in Pair, including:* Tubeless Valve (x2)Assembled in North America by experienced wheelbuilders with Sapim Race spokes (Black), 14mm Brass Polyax Nipples (Black)