XPost: comp.os.linux.misc   
   From: tnp@invalid.invalid   
      
   On 10/12/2025 03:17, c186282 wrote:   
      
   >> so if you use the   
   >> loaded "radius" or "diameter" (even though neither really applies to a   
   >> "non-circular shape") you'll come up short for the "distance around the   
   >> outside of the tire".   
   >   
   >    Only a little.   
   >   
   No.   
   A very great deal in terms of using tyre rotation to sense speed.   
      
   A soggy tyre with 1/2" less 'radius' at the contact patch on say a small   
   10" wheel is 10% out .   
      
   But the *circumference* doesn't change very much. That is only affected   
   by the expansion under pressure...   
      
      
   --   
   “Some people like to travel by train because it combines the slowness of   
   a car with the cramped public exposure of 
an airplane.”   
      
   Dennis Miller   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)