From: Paul@Houston.Texas   
      
   Xeno wrote:   
   > On 4/5/20 3:28 am, Paul in Houston TX wrote:   
   >> 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.   
   >   
   > Lower the tyre pressure and see what happens to the sidewalls.   
      
   Good point!   
      
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