Challenge, Grifo Pro, Tire, 700x33C, Folding, Clincher, Natural, SuperPoly, PPS, 300TPI, Tanwall

* 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 handmade clincher combines a supple, 300TPI SuperPoly casing with natural rubber tread for improved grip, confident cornering, and quick handing. * Includes PPS, a Puncture Protection System placed between the tread and casing to increase resistance to punctures. * UCI-legal 33mm casing when mounted to 15-19mm internal width rims​​