Teravail Circos Gravel Rim Dialed for Gravel Carbon gravel rims don't always account for the tires going on them. The Circos was designed the other way around. Carbon fiber's low weight and high stiffness make for wheels that spin up quickly and help you hold your line through rough gravel. Carbon also damps vibrations from harsh roads, so you arrive at the finish with more left in the tank. Front- and rear-specific layups and a hookless construction mean each rim is tuned for its position in the bike, balancing pedaling stiffness against impact compliance where it counts. The rims are tested to standards that exceed ISO 4210 regulation tests and are covered by a lifetime warranty. Features Carbon fiber construction low weight and high stiffness for quick spin-up25mm internal / 30mm external width, 30mm depth shallow profile minimizes moment of inertia for quick accelerations and a compliant ride feel Hookless rim design with thick flange holds up to rugged gravel roads Front- and rear-optimized rim drilling better spoke bracing angles for position-specific stiffness Reinforced rim spoke bed with washers added durability at the lacing points ETRTO-compliant hookless bed reliably easy tubeless setup; works seamlessly with tubeless tires, valves, and tape Available in 24- or 28-hole drilling flexibility for custom wheel builds Lifetime warranty covers the original owner against material defects and rim system failures | Teravail | Circos Gravel Rim Rear, 28H