Probably the smallest bike pump on the market, the Airborne Supernova Pocket Pump ($20) is so tiny it fits in your bag, purse or pocket. But measuring only 4 inches doesn’t mean you can’t keep up with your full-size counterpart. The Airborne Supernova is proven to let you inflate up to 100 psi in just a few minutes with limited efforts. The pump comes in different colors and can be purchased with a bike mount. With the Airborne Supernova Pocket Pump, you’ll never run flat again.