Vittoria Saguaro 2.2 TNT MTB Tire Vittoria's classic do-it-all tire with fast-rolling centre tread and medium side knobs for predictable handling on all surfaces. Great balance of versatility and performance Rolls fast and bites hard TNT represents the top-of-the-line clincher MTB casing available from Vittoria. TNT, short for Tube/No-Tube, can be used with or without an inner tube. What originated as their Tubeless ready casing has evolved into the obvious choice for racers who demand race day dependability. The casing starts with a proven, lightweight 120 TPI carcass, which provides the trademark Vittoria supple feel. This allows the tread to minimize deflection, and reduce rolling resistance. All Vittoria MTB TNT tires come with a sidewall protection layer. The added layer of sidewall protection virtually eliminates sidewall cuts. TNT features work together to provide an unbeatable package, without compromise.