Portable hand pump with floor pump capabilities developed to efficiently inflate fat bike tires Portable hand pump with floor pump capabilities developed to efficiently inflate fat bike tires CNC-machined aluminum construction, which keeps its weight to a minimum without sacrificing durability An extra large, high volume barrel produces large amounts of air with each pump and can inflate tires up to 35 psi A long, integrated hose and a stainless steel foot peg improves pumping efficiency ABS Flip Chuck is compatible with both Presta and shrader valves