The Specialized Air Tool MTB Floor Pump is back and better than ever. Suitable for low-pressure, high-volume tyres, it ensures precise pressure for any terrain. Features an oversized gauge and SwitchHitter II head for Schrader and Presta valves Back by popular demand, the Air Tool MTB Floor Pump is now better than ever. Engineered for low-pressure, high-volume tires, it delivers precise air pressure to ensure your tires are ready for anything the trail throws your way. Oversized 3" (76mm) gauge with a 0-40 PSI (0-2.7 bar) range and +/- 2% accuracy for precise inflation of large tires. Massive 508cc volume barrel delivers plenty of air to seat stubborn tubeless tires with ease. Ergonomic wing handle features a built-in pressure relief valve for added convenience. SwitchHitter II head automatically switches between Schrader and Presta valves for hassle-free compatibility. Includes a spare rubber seal for the head. Max pressure: 40 PSI (2.7 bar) Volume per stroke: 508cc The Air Tool MTB Floor Pump is the ultimate tool to keep your tires perfectly inflated and trail-ready.