There are two neat Web sites for determining tire sizes. Use 'em and
we'll never have this discussion again! :-) :-)
<LI><a href="http://mr2.com/FORMS/tire.html";>Tire Size Calculator - 1</a>
<LI><a href="http://powerdog.com/tiresize.cgi";>Tire Size Calculator - 2</a>
Copy them to your bookmarks or just use the text between the "..." marks.
No end to the combinations you can come up with.
-- \/
Shel Bercovich '74 B-GT sbercovich@cbe.ab.ca /\
Join the Trail Riders of the Canadian Rockies (Non-Profit) / \
"Come Ride with Us in Banff National Park" / /\ \
On Wed, 20 Mar 1996 RBigsby@aol.com wrote:
> A tip for determining tire diameter and width:
>
> D = wheel dia + 2(width x ratio / 25.4)
> W = width x 25.4
>
> So, 165SR14 = 14 + 2(165 x .78 / 25.4) = 24.13"
>
> The .78 comes from the standard ratio of sidewall heighth to tire width of
> 78%. This is how we get away with using a "larger" tire that may be 75, 70,
> or lower ratio - the overall dia can remain the same.
>
> Related subject: does anyone have any experience converting MGB hubs to a 5
> bolt configuration? I am tired of searching for tires and paying riduculous
> prices when I find them. My wife's Saturn rolls on 195/60-15's and the dia
> is nearly identical - just the width to worry about. The Saturn bolt circle
> is too small, though, at 100mm. The MG, I believe, is 120 mm. Any ideas?
>
>
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