Challenge, Grifo TLR, Tire, 700x33C, Folding, Tubeless Ready, Vulcanized, Nylon, Black

* The best all-around cyclocross tire ever created excels in wet or dry, soft packed, rocky and root-infested courses, grass, and more* The Grifo features fast rolling knobs and a center section that offers excellent pedaling and braking traction* This TLR clincher with 120TPI nylon casing provides both performance, durability, and puncture protection when combined with the appropriate tubeless sealant.* UCI-legal 33mm casing when mounted to 15-19mm internal width rims