29-Inch

Vittoria's Evolution II is versatile and reliable—the choice for daily recreation and commuting on all types of surfaces. It's multi-surface tread grips all the time, regardless of where you ride, offering tremendous confidence and versatility. Vittoria's puncture-resistant belting lets you ride day after day without worrying about flats. - Multi-surface tread - Wire-bead - 35-58 PSI - 790 grams (26-inch), 840 grams (29-inch)

Special compound and tread pattern and our strongest casing are designed expressly to disperse heat and reduce noise generated by home trainer use. - Ideal for rollers or turbo trainer - Also available for 26 inch MTB wheel size

The technical small-block tread layout of the Vittoria Barzo tire has constant effective-edge center and lean-dependent sipe angles. - Center tread consists of an alternating ridge pattern with progressive sipe angles - Shoulder tread utilizes a moto-style block knob in a V-formation - Designed for performance in rough and smooth hardpack - Approved for use with hookless rims

The XCO World Champion tire Riding technical XC? The Barzo is the choice of the 2015 World Champion, as well as the winner of the BC Bike Race. How can such an aggressive XC tire roll so 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, while still offering the protection of a full depth tread. Rocks and roots? Check. World Championship? Check.