The Cannondale Dirt Mini Pump is packed with clever features that prioritize convenience and functionality, and gets large volume off-road tires to the correct pressures quickly. It gives you efficiency and convenience on the bike for challenging trails. It features quality aluminum construction with ergonomic CNC-machined surface, while its retractable flexible hose has fully sealed weatherproof internals. Its lever lock pump head compatible with all bicycle tire valves and maximizes air volume design for easy inflation up to 60 psi/66 cc volume-per-stroke.