Packing enough efficiency to put most floor pumps to shame, the hand-pump-sized Micro Floor Drive XL was developed to efficiently inflate fat bike and plus tires. It?s constructed from lightweight and durable CNC-machined aluminum and features an extra large, high volume barrel which produces up to 35 psi (2.4 bar). A long hose and a stainless steel foot peg optimize pumping function. Presta and Schrader compatible ABS Flip Chuck.