Vittoria Barzo Cross Country Tire is the XCO World Champion tire. It is the tire of choice for Jordan Sarrou, 2020 World Champion. Aggressive XC tire that rolls fast! The magic starts in the center tread, where we place an alternating ridge design, and progressive sipe angles. Cornering duties are handled by the moto-style block knobs, laid out in a proven V-formation. The result is a tire that corners as fast as it rolls. Aggressive XC tread for the most technical terrain. Available with World Championship proven TNT bead technology. Vittoria is the official tire of USA Cycling. Tire choice of professional riders in the peloton. Winner of Tour de France, Giro d’Italia, Vuelta a España, Classics, World Championships, European Championships and Olympic Games.