Circos is Teravail's carbon gravel rim. Speedy, smooth, and backed by a lifetime warranty, Circos improves your connection to the terrain on every ride. These rims are engineered for a perfect fit with all Teravail gravel tires, which means easy tubeless setup, optimized tire profiles and plenty of options. -25mm internal rim width -Hookless rim design with thick flange holds up to gravel adventures -Reinforced rim spoke bed with washers for extra durability -Front- and rear-optimized rim drilling for better spoke bracing angles -Optimized for use with Teravail Tubeless Tape, valves, and tires -370 grams -Lifetime warranty for original owner under appropriate use