The Reaver is Maxxis&'; "go to" tire for gravel racing. Its diamond knurling center tread is low and fast with meaty side knobs for consistent cornering traction. Choose the Reaver when off-road speed is priority number one Low-profile tread design uses diamond knurling to reduce rolling resistance and enhance grip in dusty or loose conditions Paddle knobs arranged in sets of three provide extra bite under hard braking Side knobs are spaced closely together and are staggered for consistent cornering performance Sipe (groove) in each of the side knobs allows them to flex and conform to the terrain, improving traction Race-ready tread design, intended to go fast on gravel and dirt EXO - Cut/abrasion-resistant material added to the sidewalls. This densely woven fabric is lightweight and highly flexible, ensuring that the performance of the tire remains unaffected. Choose EXO Protection for enhanced durability for gravel, XC, and light-duty trail riding Tubeless-ready - the ability to run lower air pressures, improves traction; lower rolling resistance when compared to a tube-type tire; and less chance of flatting because there is no tube. Liquid sealants have the added benefit of sealing small punctures Dual compound to maximize wear Tire Diameter: 700c Labeled Size: choose; 700 x 40c, or 700 x 45c ISO Diameter: 622 / Road / 700c ISO Width: choose; 40mm, or 45mm Flat Protection: Sidewall TPI: 120 Tire Intended Use: Gravel Tire Type: Tubeless Ready Tire Bead: Folding Weight: 437g. (700x40c black); 495g. (700x45c black); 430 (700x45c tanwall)