Built of 6069 alloy and featuring a reinforced spoke bed and welded seam, the 25mm wide Crest MK4 rim is designed to handle the pressures of both gravel and mountain bike tires. Its asymmetric design improves spoke angle, creating a stronger wheel. Stan's patented Bead Socket Technology rims ensure the easiest and most reliable tubeless seal. With a 25mm rim width optimized for gravel and XC tires up to 2.3 inches, the Crest MK4 Wheels by Stans are both lightweight and durable. Made of 6069 aluminum with a welded joint and reinforced spoke bed, these wheels are built to last. The BST-Asymmetric design combines easy tubeless inflation with a stronger and more balanced wheel build. Featuring M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagement and enduro bearings with a double-row freehub bearing, these wheels are built for performance. The matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability. When you purchase these wheels, you become part of Stan's connection program. This includes a 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and a $10 donation to a trail maintenance or advocacy group of your choice. Please note, the title does not contain any part numbers or color references.