SOMA Sicoro Tire, 700C, Clincher Tire, for Cyclocross Foldable, 42C, 42CThe reverse knob provides resistance to slip without increasing tire rolling resistance.High density and strong casing for puncture resistance.Color: Black (brown sides)Size:700*23C,28C,33C,38C,42CPolyamide CasingReference Weight: 10.2 oz (290 g) (23 C).Made in Japan (Panacer R..