Serfas&'; Seca Wire Bead Road Tire is a great all-round training tire thanks to a long tread life, great flat-resistance and superior road feel. The harder center ridge provides low-rolling resistance, while the softer sides enhance your cornering capabilities. For speed on smooth courses, it&';s rated to 100 psi and Serfas&'; Integrated Flat-Protection System offers excellent puncture protection. 26 x 1.25-inches 360 grams