Continental Cross 28 Inner Tube for Cyclocross, touring, or commuting. Seamless construction ensures uniform roundness. Suitable for use with Cyclocross / Gravel Bikes. Features a removable valve core with a Presta valve and a 42mm valve length. ETRTO Size: 32/47-622. Size: 700x32-47C, 28x1.5-28x1.75. Weight: 155g approx. Made from high-quality butyl mixture.