07-22-2013, 01:09 PM
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CC Member
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Join Date: Oct 2003
Posts: 4,078
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Quote:
Originally Posted by lippy
Chas, you're right that the math says the OD of the 225/65 is larger than the OD of the 235/60. Avon doesn't make the 235/60, so ERA recommended I go with the 225/65 and mentioned there shouldn't be a problem.
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Well now you know there is. All the tires sizes are different per manufacturer.
I had 4 sets of Hoosier TD's, size 245 / 60 on the fronts for 8 years. Like all ERA's with any tire, the driver front will rub on the inner fender panel (where the screen vent is) and the pass side will rub a little less.
That's only at full lock at parking speeds. You're never at full lock any other time, even in auto-x.
For the record, my front BB's with 26.5" diameter had a circumference average of 82.875 to 83.187 and rubbed no worse than the TD's.
It's always wise to check circumferences and adjust up to the highest (or have a bad set shaved). Radials are more closely sized but I'd check anyway.
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Chas.
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