This is topic 16" tires size question in forum Tech Talk at Northern California Ford Owners  .


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Posted by j0eyabs (Member # 1026) on :
 
I and upgrading my factory 10 holes to a set of pony rims, what tires can i use on them and still not affect my speedo very much. also where can i buy 1/4" wheel spacers
 
Posted by 89lx (Member # 1703) on :
 
The stock size is 225 55 16s. I run 245 50 16s on mine and have no problem with them. They're almost an inch wider and much cheaper than the 225 55s. The nice thing about the 245s is they're almost the exact same size (within a couple of mm) so they won't change the speedo at all.
 
Posted by 93PONY (Member # 60) on :
 
Total tire hieght can be calculated easily:

EX: 225/55/16
(((225/25.4)*.55) * 2) + 16 = 25.74 inches

245/50/60 = 25.64 inches.

However, each tire manufacture may have a different height for the same size tire. Tirerack.com advertises height, width, contact patch, etc on the website for the tires they sell.
 




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