| That website doesn't give a lot of real specs on that 185/80 tire,  
but that 80 means 80% of 185. 80% of 165 is a whole different animal.
Basic math gives a diameter of damn near 26.7 inches for a 185/80 tire.
Factory manuals for the Austin Healey list 25.39 as the standard  
diameter.
Wilko
San Diego
On Jul 8, 2009, at 4:31 PM, Greg Lemon wrote:
> Actually 80 profile is pretty close to "standard" a 165/80 as we  
> have had available is pretty close in dimension to the original  
> equipment bias plys fitted to early cars, I would think the 185/80  
> would certainly fill the wheel wells up much better than the 185/70  
> that has been popular (though now is hard to find) on big Healeys.   
> I think a "standard"" aspect ratio may be more like 82%, but at 80  
> you are certainly pretty close.
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