Race it hard or just head off the beaten path. The Strada Bianca wraps Challenge's proven herringbone tread pattern further around a large volume casing and adds a gravel specific construction to take you comfortably over less-than-perfect surfaces. This is your tire for rough roads, packed dirt, and most gravel surfaces. This clincher with 120TPI nylon casing provides both performance and durability. This tire includes PPS, a Puncture Protection System placed between the tread and casing to increase resistance to punctures.