Bicycle mini-pumps are usually pretty gutless, taking hundreds of strokes to fill a tire. Not this one. With a volume of 100cc and weighing just 160g, the EDC Pump has the highest volume to weight ratio on the market. It also has an integrated CO2 Inflator. It’s designed to work with One’s compact EDC Tool System and has fully sealed weatherproof internals and is made of 6061-T6 aluminum.