At 04:57 PM 8/11/2007, Bill Bowman wrote...
>Everything else I've read on the Hankook site and Bus Depots site
>seems to suggest that this tire ought to be great for my '87
>Westy.  High inflation (up to 65 psi), stiff reinforced sidewalls, a
>little taller than my old Michelin MXL 205/70R14.  I'm still hoping
>that someone out there will measure the outer circumfrence of an
>inflated Hankook RA-08 195 series tire.

I don't think you're asking the right question, or that the answer will
tell you what you want to know. That measurement will be only loosely
related to the effective radius of a tire in operation - inflation
pressure and sidewall stiffness will both affect the apparent size of a
working tire (the bottom is always slightly flat).

Hankook provides dimension data (
http://www.hankooktireusa.com/product/RA08.pdf ), which includes
"revs/mile." Look up the same for your existing tire, and compare those
numbers.