Lezyne Alloy Drive CFH: The Lezyne Alloy Drive CFH is the weapon of choice for high-powered inflation in a small package. The Alloy Drive CFH features all the bells and whistles you need, built right into the burly CNC-machined aluminum body. No more broken valve stems thanks to the high-pressure steel braided hose that stores conveniently inside the body of the pump. The all-in-one CNC-machined aluminum mount makes carrying two 16-ounce cartridges, pump and the CO2 inflation system convenient and ready to use at the first hiss of a puncture.