From: Paul@Houston.Texas   
      
   thekmanrocks@gmail.com wrote:   
   > Strangest Tire Question EVERRR...   
   >   
   > Has anyone ever calculated or estimated the area, in square inches/square   
   cm, of the *surface of the inside* of a tire?   
   >   
   > Does at least an average exist out there, for broad categories: passenger   
   car, SUV-light truck, and commercial truck?   
   >   
   > Just curious, Thanks!   
      
   Entering footprint into the argument.   
   My car's GVW is 3800 lbs so each tire supports 950 lbs (ideally).   
   If a my tire has a footprint of 6"x6" = 36" sq, and if each sq in has a   
   pressure of 36 psi, then the psi total of the footprint is 1296 lbs.   
   Oddly enough my car tire's max load rating is 1295 lbs.  Push on it with   
   an area and it will push back equally.   
   The rest of the tire area is at 36 psi and is irrelevant since it does   
   not support anything.   
      
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