Tire size's

["Mike & Christine Trettin" <mtrettin@xxxxxxxxxxxxxxx>]

> series raised white letter tires.  I always thought that '70, '60, or
> even smaller numbers meant the width of the tread.  Is that not so?  My
> Crown Convertible Coupe is running on P235-75R15.  Now the way I read
> that is: P235 means the height from tread to rim, 75 means width of the
> tire over the tread, which is 75 percent of the tire height, and R15
> means rim size.

Hi Bill,

You got it just backwards on those widths and aspect ratios.  The collective
wisdom of the Imperial Mailing List, including that of tire-maker's-son and
general-all-around-good-guy Dick Benjamin, has been summarized in the Repair
section of the website here:

http://www.imperialclub.org/Repair/Wheels/size.htm

Hope that clears it up!

Mike Trettin
1956 Imperial Sedan, Turquoise



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