A mixed terrain tire for a new era of riding. Gravel, dirt, asphalt. Yes please. The Caz features a raised center for fast rolling on asphalt, with specially designed side knobs that corner well on dirt and maintain traction on the street. In a hard to find 42mm size that bridges CX and mountain biking. The 700c will fit our Soma Double Cross, Saga and Wolverine. The 650b can be used on the Grand Randonneur, Soma ES (650b conversion), or San Marcos. Skin wall or black wall. Weight: 510g (700c) and 470g (650b) Made in Japan by Panasonic.