A mixed terrain tire for a new era of riding, gravel, dirt, asphalt 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 Hard to find 42c size bridges CX and MTB riding Excellent choice for the Soma Grand Randonneur, Soma ES (650b conversion) or Soma San Marcos Made in Japan by Panaracer