Topeak Road Morph. Store it in a mountain pump bracket that attaches under your downtube bottle cage. Maybe you have an old bracket, get one from a friend, or buy. The bracket that comes with the pump zipties to your top tube, but that's unclassy. Zefal is good, too, but the Morph is better. Maybe the best thing is that your enthusiastic friends won't rip the valves out of your tubes anymore when they "help" with the pumping.