The Arch MK4 LTD wheels combine Stan&';s flagship MK4 rim design with the robust E-Sync hub. For a limited time the MK4 LTD is a performance wheelset at an incredible price point! Laced with premium Sapim Race spokes and brass nipples laced to the extra-durable E-sync hub. Featuring chromoly steel axles and double row Enduro bearings special heat treated steel ratchet rings and a pawl design that reduces stress on freehub and bearings making it the perfect choice for traditional and e-bike use.28mm rim width optimized for Trail and XC tires up to 2.5"Light 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 buildE-sync hubs offer fast 8.18Adeg engagement with reinforced pawlsEnduro bearings with double-row freehub bearing and chromoly axle offer 47% increase in max torque capacity over Neo hubsIncludes Tubeless Tape and Valve3-year rim warranty with 1-year crash replacement 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;} Rear Axle 12mm Thru x 148mm Rim Width (Internal) 28 Cassette Body Type SRAM XDR Valve Presta Color Black Wheel Size 27.5" Designed for ebike Yes Defined Color Black ISO Diameter 584 / 650b / 27.5" Tire Type Tubeless Ready Rim Material Alloy Hub/Brake Compatibility 6-Bolt Disc