Dennis, thanks.  I had somehow come to believe that no aspect ratio stated meant that it was 75.  My mistake, and it appears in another post as well.  Thanks again.  mcneely

---- Dennis Haynes <d23haynes57@hotmail.com> wrote:
>
> The Hankook tire is a 185R-14, not a 185R/75-14. The lack of an aspect ration indicates an 80 or 82 aspect ratio tire. A 195/75-14 tire is about the same diameter. A 205/70-will be a little bit shorter.
>
> Dennis
>
>
> > Date: Fri, 14 Oct 2011 11:58:41 -0500
> > From: mcneely4@COX.NET
> > Subject: Re: tire size calculator Re: tire circumference
> > To: vanagon@GERRY.VANAGON.COM
> >
> > ---- 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. Tire Rack (tirerack.com)
> > > > is really good at providing this type of information.
> > > >
> > > > Cheers,
> > > >
> > > > Jeff
> > >
> > >
> > > > Alistair Bell
> > > > Sent: Friday, October 14, 2011 7:55 AM
> > > > To: vanagon@GERRY.VANAGON.COM
> > > > Subject: tire size calculator Re: tire circumference
> > > >
> > > > bookmark it Dave :)
> > > >
> > > > http://www.miata.net/garage/tirecalc.html
> > > >
> > > >
> >
> > --
> > David McNeely
>

--
David McNeely