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Re: Snow tire size for '86 4kq
I suspect the problem is most pronounced when you try to compare tires
of two different aspect ratios and/or types (performance, snow,
touring). Most tire manufacturers publish the rolling radius or
revs/mi. Just ask your dealer. You might also check manufacturers web
From: Michael Shields <firstname.lastname@example.org>
Since the D60's 916 revs/mile differs from the calculated value by a
full 5%, this means that you cannot freely switch between two tires,
even of the *same* nominal size, without knowing how much their
height will change under the mean load you intend to put on them (and
what is specified is probably the deformation under maximum load).
Is that right? If so, why don't tire vendors tell you this?