A small road pump that inflates like a full-sized one, the Air Support Road's dual-action design moves air on both the push and pull stroke, meaning tires fill twice as fast. The fold-out handle provides a secure, comfortable grip for maximum leverage while the locking head keeps the pump firmly on the valve for trouble-free fill-ups. Reversible valve head fits both Presta and Schrader valves. Included mounting bracket fits under most bottle cages.