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 hubs with Enduro bearingsMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityIncludes tubeless tape and presta valves TECH SPECS table{border-collapse:collapse;width:100%;} td{text-align:left;padding:8px;font-weight:350;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Rim Width (Internal) 28 Front Axle 15mm Thru x 110mm Valve Presta Color Black Wheel Size 27.5" Defined Color Black ISO Diameter 584 / 650b / 27.5" Tire Type Tubeless Ready Rim Material Alloy Hub/Brake Compatibility 6-Bolt Disc