When you're looking for a lightweight Gravel and XC wheelset built to roll fast and last forever, the aluminum Crest MK4 is your wheelset.25mm rim width optimized for Gravel and XC tires up to 2.3 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 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)25Tire TypeTubeless ReadyValvePrestaWheel Size29" Stan's No Tubes Crest MK4 Rear Wheel Rear Wheel UPC: 847746059134