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tire sizes

1853 Views 18 Replies 8 Participants Last post by  MXtitan24
what is the difference between
315/70/17
and
325/12.5/17

what does 315 mean?
1 - 19 of 19 Posts
Give this link a try. It will let you download a program that will show you how different size tires compare to what you have on now. It will even tell you how much your speedo will be off.



http://cat.cc/tiresize.htm
thanks!
hope that helps me
(downloading now hhaa)
ahhh
sorry but that didnt really help
is 315- 34.5 inches
and 325- 35"
MXtitan24 said:
ahhh
sorry but that didnt really help
is 315- 34.5 inches
and 325- 35"
Best place to look at tire spec's are on the manufactures web site.
The BFG is 34.5
Toyo 325/70/17 is 34.9
ahh!
u have enlightened me lol
well im going wit the
35/12.5/17 Pro Comp Xtreme A/T's
on 17 moto metal 951's

it says they are 34.9" so that is good enough haha

anyone know if those will rub with a 4 cst spindle and a 2.5 leveling block?
Wheel offset/backspacing will play a part in the potential rub
hmm.. well i dont kno that now,
but i do kno there is no rubbing wit the moto metals and the tires i have now..
MXtitan24 said:
hmm.. well i dont kno that now,
but i do kno there is no rubbing wit the moto metals and the tires i have now..
Still trying to decipher your coded message :upsidedow
haha sorry
i text alot, so everything is short and sweet :)
Understood...post some pics of your truck...when you get to 15 posts...
ok lol
i will get some pics tomorrow
and i will get some more posts haha
another good site is 1010tire.com
315 is a 35" tall
325/60/18 is like 34.3 or something
315 is taller than the 325 but the 325 is wider than the 315.

i have the 325/60/18 w/ a 2.5" leveling kit and if it was any closer it would rub.
I was told that the numbers in tire sizes are a ratio and each of the numbers can have an impact on all of a tires dimensions. I don't know if it's BS or not but it seems to be true. It seems like it would be easier to just use the actual measurements. I mean if a tire is 33 inches tall, 12 inches wide and made for a 18 inch rim, why not just say so. All these "edumacted" dudes are ganging up on us or something.
MXtitan24 said:
what is the difference between
315/70/17
and
325/12.5/17

what does 315 mean?
315 = the width of the tire in millimeters

70 means the height of the sidewall is 70% of the width

17 = Rim Size

To convert from metric multiply by .03937

315 x .03937" = 12.4" wide tire.

12.4 x .70 = 8.68" sidewall height.

To figure out the diameter of the tire you multiply the sidewall height x 2 + rim size.

(8.68 x 2) + 17 = 34" diameter tire.

The 325/12.5/17 is a very low profile tire.
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so if i want 315 i get a tall tire (wich is what it want)
but it is thinner. also what i want..
bfg a/t ko's have them
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