Tire Sizes....
#1
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Tire Sizes....
Hey all-
I can't seem to find a chart that gives, for example, 33" tires=285's or whatever. I want to go to a larger rim size and am wondering what 265x75x16 equal, if they are similare to 32's, 31x10.50xr15 or what.
I can't seem to find a chart that gives, for example, 33" tires=285's or whatever. I want to go to a larger rim size and am wondering what 265x75x16 equal, if they are similare to 32's, 31x10.50xr15 or what.
#2
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Go the tire manufacturers web sites for charts. Remember that not all brands are the same size - in theory all 285/75R16s should be the same size but in reality they definitely are not... Here's a chart for example: http://www.bfgoodrichtires.com/asset...rain_ta_kd.pdf
a 265/75R16 would equate a 32x10.50
a 265/75R16 would equate a 32x10.50
#3
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These are general sizes:
265/70R 16 = 31 X 10.50 X 16
265/75R 16 = 32 X 10.50 X 16
275/70R 16 = 31.50 X 11 X 16
285/75R 16 = 33 X 11.50 X 16
295/75R 16 = 33.50 X 12 X 16
305/70R 16 = 33 X 12.50 X 16
305/85R 16 = 36 X 11.50 X 16
315/75R 16 = 35 X 12.50 X 16
325/70R 16 = 34 X 13 X 16
325/80R 16 = 37 X 13 X 16
365/65R 16 = 35 X 14.50 X 16
265/70R 16 = 31 X 10.50 X 16
265/75R 16 = 32 X 10.50 X 16
275/70R 16 = 31.50 X 11 X 16
285/75R 16 = 33 X 11.50 X 16
295/75R 16 = 33.50 X 12 X 16
305/70R 16 = 33 X 12.50 X 16
305/85R 16 = 36 X 11.50 X 16
315/75R 16 = 35 X 12.50 X 16
325/70R 16 = 34 X 13 X 16
325/80R 16 = 37 X 13 X 16
365/65R 16 = 35 X 14.50 X 16
#4
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I'll use 285/75r16's for this example of how to do the calc yourself:
285mm=11.22in=section width
.75=aspect ratio (aspect ratio x section width = wall height)
16in=wheel OD
.75*11.22*2+16=32.83in tire OD
285mm=11.22in=section width
.75=aspect ratio (aspect ratio x section width = wall height)
16in=wheel OD
.75*11.22*2+16=32.83in tire OD
#6
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I know. let's kick my ass. hehe.
I wrote me a spreadsheet so I don't have to do the math anymore or search the web for a calc anymore.
just for the record, the 285/75/16 is just a hair larger in OD than the 305/70/16.
I wrote me a spreadsheet so I don't have to do the math anymore or search the web for a calc anymore.
just for the record, the 285/75/16 is just a hair larger in OD than the 305/70/16.
Last edited by keisur; 12-06-2004 at 02:43 PM.
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