* The Strada is Challenge’s go to tire for long days on the road * This all-condition tire combines a round profile that takes the sting out of rough pavement with a construction that provides maximum control and low rolling resistance.* 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.