> a 235/70 tire would be 87.81617260034in, and the circumference of a
> 245/60 tire would be 83.4872063454in. So, for every revolution, the
Jon - You're guilty of false precision. I imagine temperature alone
makes thousandths of an inch irrelevant. More importantly, every tire
manufacturer's tires are different dimensions - even with the same
P-metric rating on the sidewall. Also, you might want to calculate
the diameter with half the tread worn off when picking your tires.
That'll take a bit more work, and will also depend alot on who made them.
Finally, the section width - and overall rolling diameter of a tire -
is also dependent on the rim width.
Jim
-- Happiness is (according to Aristotle): "The exercise of vital powers along lines of excellence in a life affording them scope." d
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