Vittoria Barzo XC 24x1.90 Wirebead The efficient mountain bike tyre for all conditions and mixed terrain. Fast, versatile, and reliable, the Barzo is engineered for pushing yourself and exploring your local trails - regardless of terrain type and conditions. The Barzo thrives in wet, dry, and variable conditions, and it’s as ready for rocks and roots as it is for soft, loamy soil or hardpack trails. The alternating centre knobs roll fast, and moto-style shoulder knobs bite hard while cornering. Siping throughout increases grip under lateral loads, helping to maintain speed across terrain of all types, and spacious knob placement cleans muck and loamy soil.