The Air Tool Flex Pump uses an inverted camber design that allows for quick fill-up on mountain tires, yet it can still reach the high-pressures needed for road tires. The pump features a Schrader and Presta thread-on T-head with flex hose to prevent excess stress on valve stems. A machined outer barrel provides extra grip while pumping, and the all-aluminum barrel and shaft deliver durable performance. A water bottle boss frame mounting bracket is included for convenient storage and transport.