This simple device can be worth more than gasoline during a disaster aftermath.
After all even if you did have fuel but a flat tire you're going nowhere or if the roads are jammed with stalled vehicles or storm debris, a bicycle or small motor cycle may be the only transportation you have that is viable.
Remember in a SHTF aftermath you can't count on grid power or enough fuel to run your generator that "if large enough watt wise" run your air compressor to fill a flat tire. The old manual tire pump could be a life saver.
How would you fix a flat tire due to a puncture? Follow this link: http://www.livingprepared.blogspot.com/2011/03/how-to-fix-flat-tire-yourself.html
This is a Schwinn bicycle tire pump that I use. If you buy one buy a strong one because it takes a lot of pumps to fill a car or truck tire.