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Old 03-13-2011, 08:54 AM   #1
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REAL tire sizes

Hi,
anybody have access to actual tire size charts ? I've used all the "tire calculators".....but they all seem to go off some master data base, and the bottom line in my experience is that the actual size given is a good inch to inch and a half big (i.e, 33's are actually 32", but the specs say 33, etc....). Hard to gauge what you can run when you can't even rely on your tape measure !

I have LT255-70-16's, which are supposed to be just over 30", but are just under 29" in reality.
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Old 03-13-2011, 09:45 AM   #2
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My 32" tires are just over 31 1/2" if I take a tape to them... I think that is normal to round up or to closest whole number...

Mine are 265/75-16"
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Old 03-13-2011, 09:47 AM   #3
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Quote:
Originally Posted by David K View Post
My 32" tires are just over 31 1/2" if I take a tape to them... I think that is normal to round up or to closest whole number...

Mine are 265/75-16"
Correct. Tire manufactures round up. A 32.5" tire is clasified as a 33" tire. Same with a 33.2" tire. A 33.4" tire is considered a 34", etc.
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Old 03-13-2011, 09:53 AM   #4
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Quote:
Originally Posted by jb12031 View Post
Hi,
anybody have access to actual tire size charts ? I've used all the "tire calculators".....but they all seem to go off some master data base, and the bottom line in my experience is that the actual size given is a good inch to inch and a half big (i.e, 33's are actually 32", but the specs say 33, etc....). Hard to gauge what you can run when you can't even rely on your tape measure !

I have LT255-70-16's, which are supposed to be just over 30", but are just under 29" in reality.

Do you have a brand in mind? Most of the tire manufacturers have pdf files of the tires that list the overall diameter on their websites.
Attached Files
File Type: pdf RF10_Catalog.pdf (2.93 MB, 151 views)
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Old 03-13-2011, 10:08 AM   #5
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Tire Rack has great comparison charts for tires with reviews and specs...
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