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Old 03-24-2003, 09:07 PM   #1
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265/75R15 v. 31x10.5

what's the size difference between 265/75's and 31x10.5's? i read that the 31's would be the largest i could run on my stock tacoma but i'm currently running 265/75R15. is there a significant difference in tire size?

thanks
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Old 03-24-2003, 10:13 PM   #2
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The 31x10.5's are 1-1.5" wider, providing they do measure 10.5".

265's are 9-9.5" wide.
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Old 03-25-2003, 04:19 AM   #3
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Is there a 31X10.50 for 16 inch rims?

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Old 03-25-2003, 05:25 AM   #4
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265/75r16 is 10.5 inches according to most manufacturers specs. They are also 31.8 inches tall so they are the same height as a 32x11.50 without the wider tire bulge. That is what I'm mounting on the new 16x7 wheels that came in yesterday.

265/70r16 is 30.7 inches tall and 10.5 inches wide just like a 31x10.5 . If you do go for a 16" wheel maybe you should consider the taller tire as it will increase ground clearance.
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Old 03-25-2003, 06:08 AM   #5
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Re: 265/75R15 v. 31x10.5

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Originally posted by moschika
what's the size difference between 265/75's and 31x10.5's? i read that the 31's would be the largest i could run on my stock tacoma but i'm currently running 265/75R15. is there a significant difference in tire size?

thanks
you can run 265/75s on a stock tacoma. roughly a 32x1050.
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Old 03-25-2003, 08:14 AM   #6
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Quote:
Originally posted by Victor
265/75r16 is 10.5 inches according to most manufacturers specs. They are also 31.8 inches tall so they are the same height as a 32x11.50 without the wider tire bulge. That is what I'm mounting on the new 16x7 wheels that came in yesterday.

265/70r16 is 30.7 inches tall and 10.5 inches wide just like a 31x10.5.
That's the problem with manufacturers specs. They're hardly accurate at times. Does the 4Runner's published ground clearance specs ring a bell?

My stock 265 Bridgestones are about 9" wide as well as my old 265 MT/R's. 265/75 MT/R's are 31" unmounted and sit at 30" on the truck, though they always measure small anyway. I believe BFG's are closer to matching the listed height.

I believe 285 MT/R's are 10.5" although I haven't measured them yet for some reason (I should have known such a post was coming). 285's are generally accepted to be 11.5" wide, but if you compare them to a 32x11.5, they aren't near as wide.
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Old 03-25-2003, 08:46 AM   #7
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I agree. That and the fact that a wider tire measuredment at the bulge doesn't equate to wider tread compounds the problem. Not too many shops will mount up a tire to let you look at it though but I know my 31x10.50's are narrower than spec also.
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Old 03-28-2003, 05:00 PM   #8
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Miss checking in a few days and i'm already 3 pages back. anyway

why the size numbering difference, if basically a 265/75 is the same as 32x10.5? and if a 265/75 is the same as a 32x10.5 then that's already larger then what i read as the 'recommended' maximum. yet this is what came on my truck from the dealer.

what would be the largest tire to put on a stock 98 tacoma then?


is there some reason why tire manuafacurers have differenct systems?
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Old 03-28-2003, 06:16 PM   #9
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If you have 16" wheels you can fit 265/75r16. If you have 15" wheels you can fit a 32x11.50. The wider 11.50 tire may rub at full wheel lock.

Larger than what is recommended? Isn't that the point with 4wheeling? You need more ground clearance to prevent damage to the truck. If you don't offroad much then don't worry about oversized tires.
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Old 03-28-2003, 08:08 PM   #10
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265/70R16 = 30.6" overall height, 10.4" wide (tread face)

265/75R16 = 31.6" overall height, 10.4" wide (tread face)

31 x 10.5 = 31" overall height, 10.5" wide (tread face) <-- did that all really need to be said?

1 inch = 25.4 mm

A buddy of mine has 33 x 9.5's & they are significantly more narrow than my 265/75R16's.
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Old 03-28-2003, 08:08 PM
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