Arch S2 wheelsets have the versatility to handle a wide range of riding conditions and are the ideal upgrade for Trail, AM, Enduro, and eBikes. When your average ride includes both tough climbs and rough descents and you want the best tubeless system in the business, the Arch S2 is for you.32 SpokesVersatile 28mm internal rim width optimized for 2.2-2.5 tires6061 aluminum with sleeved joint and stainless steel rim eyeletsPatented BST low-profile rim shape for easy tubeless inflation and the most reliable sealMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityE-sync hubs offer fast 8.18 deg engagement with reinforced pawlsEnduro bearings with double-row freehub bearing and cromoly axle offer 47% increase in max torque capacity over Neo hubsConnection program includes 3-year E-sync hub warranty, 3-year S2 rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choiceTubeless tape installed, requires additional valve stemsItem SpecificationsCassette Body TypeSRAM XDRColorBlackDefined ColorBlackDesigned for ebikeYesHub/Brake Compatibility6-Bolt DiscISO Diameter622 / Road / 29"Rear Axle12mm Thru x 148mmRim MaterialAlloyRim Width (Internal)28Tire TypeTubeless ReadyValvePrestaWheel Size29" Stan's No Tubes Arch S2 Rear Wheel Rear Wheel UPC: 847746060529