You are right.  I made a bad assumption, that lack of an aspect ratio in the tire size meant 75.  Dennis has clarified that, it means 80 or 82.  So, the size to enter into the calculator is 185/80R14, not 185/75R14.  That was my mistake, and I apologize.

mcneely

---- mark drillock <mdrillock@cox.net> wrote:
> According to the Hankook website, the RA08 does NOT come in 185/75R14.
>
> Hankook does make other tires in 185/75R14 and I checked one.
> Hankook site says rev/mile is 834 and NOT the 809 the Miata joke gives.
> That is WAY OFF, which was my point. False and misleading "calculator".
>
> Mark
>
>
> Dave Mcneely wrote:
> > ---- mark drillock<mdrillock@COX.NET>  wrote:
> >> And if you look at the tire manufacturer spec tables it makes clear the
> >> fact that the Miata.net calculator is bunk.
> >
> > for what it's worth, the revolutions per mile for the Hankook R08 given from the manufacturer and supplied yesterday by Dennis, and that given on the Miata.net calculator for that same tire size (185R75-14) are the same at 809 rpm.
> >
> > that does not mean that the conversions the Miata site published are always correct, it just means that the revolutions per mile published by these two sources for that tire and tires of that size agree.
> >
> > mcneely
> >
> >>
> >> Mark
> >>
> >> Jeff Schwaia wrote:
> >>> Those calculators are good for an approximation, but each brand (or model)
> >>> will have a unique specification.  You should be able to find the actual
> >>> specification if your tire is still in production. ..............................

--
David McNeely