Use Sunlite's Air Surge 2-Stage Pocket Pump to inflate both road and mountain tires. It features a high pressure/high volume switch for quick pumping convenience. Flip it to the high volume setting and the telescoping aluminum barrel pumps your tire up quickly. Then, to top it off, switch to high pressure and dial it in. And, its dual-head design works with both Presta and Schrader valves.