Wizard69 if you think a car tire takes forever try having a flat in the middle of a field on the rear tire of a frame tractor a mile from the barn. You don't dare drive it on a flat back to the barn so when your 12 years old the only thing you can think of is to walk home get the hand pump use your pocket knife to cut a tapered wooden plug to plug the hole with then spend half an hour pumping the tire up enough to finish the days work.
the guy's innovative compressor is really neat.