I'm on the badnwagon with Kelvin...Aluminium 50 cf scuba tank.
Fills tires, enough poop to run air tools & compact size.
Sure, I've got a "bomb" pressurized @ 3000psi in the back, but I've got it pointed so it exits to the rear & "does unto others" who shouldn't have rear ended me in the first place.
The only other drawback is the fact that there is no scuba shop anywhere near Moab...go figure.
(Sam Kinnison voice on: YOU LIVE IN A DESERT...THERE'S NOTHIN' OUT HERE BUT SAND)
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