The Arch MK4 wheelset is an ideal choice for All-mountain, Downcountry and Trailduro- a versatile aluminum wheelset available for riders who want to push the limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control.Versatile 28mm internal rim width optimized for 2.2-2.5 tiresLight and durable 6069 aluminum with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildM-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66 deg engagementEnduro bearings with double-row freehub bearingMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityIncludes tubeless tape and presta valvesItem SpecificationsCassette Body TypeSRAM XDRColorBlackDefined ColorBlackHub/Brake Compatibility6-Bolt DiscISO Diameter622 / Road / 29"Rear Axle12mm Thru x 148mmRim MaterialAlloyRim Width (Internal)28Tire TypeTubeless ReadyValvePrestaWheel Size29" Stan's No Tubes Arch MK4 Rear Wheel Rear Wheel UPC: 847746059547