Rims: WTB ST i30 27.5''* ETRTO 584-30* Inner width: 30mm* Disc Brake Only* Drilled for Presta valve* TCS 2.0 Tubeless System compatible* Solid Strip (included)* 32 holesFront hub (-01): Shimano HB-TC500-15-B* 15x110mm* Center Lock Disc Mount* Sealed cartridge bearings* Labyrinth & Contact sealRear hub (-02): Shimano FH-TC600-HM-B* 12x148mm* Center Lock Disc Mount* Sealed cartridge bearings* Labyrinth & Contact seal* Quick Engagement Pawl & Ratchet system * Compatible with 8/9/10/11 speed MTBRear hub (-03): Shimano FH-TC600-MS-B* 12x148mm* Center Lock Disc Mount* Sealed cartridge bearings* Labyrinth & Contact seal* Quick Engagement Pawl & Ratchet system * Compatible with Microspline 12 speedAssembled in North America by experienced wheelbuilders with Sapim stainless steel spokes (Black), 14mm Brass Polyax Nipples (Black)