Cannondale Dirt Mini Mountain Bike Pump Stay pumped. Packed with clever features that prioritize convenience and functionality, and gets large volume off-road tires to the correct pressures quickly.Where it thrivesOn the bike, challenging trailsWhat it&';s built forEfficiency, controlHighlightsQuality aluminum construction with ergonomic CNC-machined surface / bottle cage mount / length: 9.4" (24cm)Retractable flexible hose, fully sealed weatherproof internals / lever lock pump head compatible with all bicycle tire valvesMaximized air volume design for easy inflation up to 60 psi (4.1 bar) Cannondale Road Mini Mountain Bike Pump Stay pumped. Packed with clever features that prioritize convenience and functionality, and gets smaller volume road tires to higher pressures effortlessly. Where it thrives On the bike, the open road What it&';s built for Efficiency, convenience Highlights Quality aluminum construction with ergonomic CNC-machined surface / bottle cage mount / length: 8.3" (21cm) Retractable flexible hose, fully sealed weatherproof internals / lever lock pump head compatible with all bicycle tire valves Maximized air volume design for easy inflation up to 100 psi (6.9 bar) / 39 cc volume-per-stroke