Continental 0100310 Gator Hardshell 700 x 23 Urban Tire with Duraskin has set the bar for a perfectly-balanced blend of ride quality and long-term durability without breaking the bank…but still the roads of North America demand a model even tougher. The all new Gator Hardshell delivers! Sharing the bead-to-bead protection of Duraskin, the Hardshell casing wraps further into the sidewall and an extra-wide Poly-X breaker covers the entire tread strip from shoulder-to-shoulder. Added material in the tread strip not only improves mileage, but lends yet another degree of puncture resistance. More isn"t always better, but in this case - more is exactly what you get. Specs: Weight - 310 grams; Recommended PSI - 110; Maximum PSI - 120; PU - 10.