Rims: WTB HTZ i30 27.5''* ETRTO 584-30* Inner width: 30mm* 6061 series aluminum* Asymetric and angled spoke hole drilling distributes spoke tension more evenly* Reinforced I-Beam profile* Strong sleeved joint* Drilled for Presta valve* TCS 2.0 Tubeless System compatible* Solid Strip included* Tubeless valve 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)Assembled in North America by experienced wheelbuilders with Sapim Race spokes (Black), 14mm Brass Polyax Nipples (Black)