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Tire sizes

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Old 11-01-2012, 07:13 AM   #1
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Tire sizes

Okay something that I never figured out: What are the differences in tires?

IE- 195-75x14 vs 195-75x15, or even 195 75x16?

What 15" or 16" is the same size as 215 75x14?
Old 11-01-2012, 10:07 AM   #2
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Example. 245-50-15
245-width of tire
50-height of tire
15-wheel size

Go to tirerack.com and it will explain the tire size.
Old 11-01-2012, 12:14 PM   #3
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Re: Tire sizes

what I mean is like, 195 75 14, that's an inch shorter than 195 75 15 right?
or, a 205 75 15 would be the same height more or less than a 215 75 14?
Old 11-01-2012, 01:08 PM   #4
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Re: Tire sizes

Try this: http://www.1010tires.com/tiresizecalculator.asp
Old 11-01-2012, 03:34 PM   #5
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Re: Tire sizes

if you have now 195 75 14 tires and you go to a 195 75 15 tires, the only thing that has changed is the wheel size. the tire itself is the same height/width.

the last number (in this case 14 and 15) is your wheel size.
Old 11-01-2012, 03:48 PM   #6
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Re: Tire sizes

Quote: Originally Posted by s10_2.8
what I mean is like, 195 75 14, that's an inch shorter than 195 75 15 right?
or, a 205 75 15 would be the same height more or less than a 215 75 14?
Example: 195/75R14

195 = tread width in millimeters

75 = sidewall height percent in relation to the tread width

14 = wheel diameter

Those numbers don't relate directly to the overall diameter of the tire like a 31x10.5R15 does. A 31x10.5R15 is always 31" in diameter. You HAVE TO use a tire size calculator like the ones linked. S15vortecpwr's explanation might be a little confusing - the numbers don't determine the overall height or diameter of the tire, just the height of the sidewall.
Old 11-03-2012, 11:10 PM   #7
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Re: Tire sizes

the differences in those are the size where the rim goes.
195= width of tire
75= sidewall height
16= rim size

for example a 195/70/15 will have a thinner sidewall than the 75.

its confusing at first but just put it in the terms i labeled above. dont worry about percents or any of that. unless your trying to squeeze a big tire into a space where it requires certain dimensions.

for me, mine came stock with 205/75/15. im planning on doing a 2/3 drop, so im gonna go with a 215/70/15.
a little wider, and a little bit shorter sidewall. i want a little wider to make a different look, and of course a little bit shorter sidewall for clearance and no rubbing.
Old 11-04-2012, 12:18 AM   #8
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Re: Tire sizes

I think MEP1 pretty much covered it.
Old 11-05-2012, 08:03 AM   #9
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Re: Tire sizes

yeah, it clicked lol. thanks guys!
Old 11-05-2012, 08:12 AM   #10
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Re: Tire sizes

okay, take that back. here is what confused me:

195 75 14:
Overall diameter: 25.51"
Circumference: 80.14"
revs per mile: 815.3x

195 75 15:
Overall diameter: 26.51"
circumference: 83.28"
revs per mile: 784.5x

that means that the 195 75 15 is an inch taller overall, which is what I had originally thought
Old 11-05-2012, 08:24 AM   #11
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Re: Tire sizes

according to the calculator, a 195 70 15 would be close to my 195 75 14, while a 195 75 15 would be 3.8% bigger.

got what I needed guys! I bought 15" rims and wanted something similar to what I have now, maybe a bit bigger than what I have.

what size tires are you guys running?
Old 11-05-2012, 10:43 AM   #12
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Re: Tire sizes

I am running 235 70 15 (stock) on the blazer
I am running 265 70 16 on the 94 (stock was 205 75 15) on the 94, hopefuly fixin to be 285 75 16
Old 11-05-2012, 05:56 PM   #13
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Re: Tire sizes

Dude, enough with the double, triple, quadruple, quintuple posts already, holy hell.
Old 11-06-2012, 12:03 PM   #14
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Re: Tire sizes

I think of stuff after I post, and the edit option doesn't work for me lmao
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