Challenge Strada Bianca Race Tire 700x36C Folding Clincher Vulcanized Nylon 120TPI BlackThe Strada Bianca takes the proven construction of the Paris Roubaix and adds volume 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. TECH SPECS Primary Color Black Bead Folding Tire Compound Vulcanized Tire PSI 45 80 Tire Technology Nylon TPI 120TPI Tire Type Clincher Tire Weight 375g Tire