No one wants to be stuck on the side of the road hand pumping anything. If your someone who travels by bike frequently, the Mini Fumpa Bicycle Pump can get you back on the road in under a minute. It weighs under seven ounces, is pocket ready, and powered by a rechargeable lithium-polymer battery. Contains a patented compressor design, which compresses surrounding air at remarkable speeds to fill you up. Only works with Presta valves but, the full-size Fumpa has all the connect-ability you may need.