And if you look at the tire manufacturer spec tables it makes clear the
fact that the Miata.net calculator is bunk.

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
>
>