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new to wheels and tires

Discussion in 'Wheels & Tires' started by krisjw101, Jan 29, 2009.

  1. Jan 29, 2009 at 12:13 AM
    #1
    krisjw101

    krisjw101 [OP] Well-Known Member

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    Kris
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    i'm a little new at all of this so i was wondering if somebody could explain the tire sizing to me? is there a method to it? if i wanted 32" tires where in the formula of numbers would it tell me, or does it?
     
  2. Jan 29, 2009 at 6:54 AM
    #2
    Killer Red Taco

    Killer Red Taco NorCal Rock Whore

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    They way I figure out the size is to check out the tires specs on tirerack.com

    My 265's are a 31.7 in by 10.5 in.
     
  3. Jan 29, 2009 at 7:20 AM
    #3
    Rippin101

    Rippin101 Well-Known Member

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    -Nitto G2 265/70/17 -Level 8 MK6 Wheels -Katzkin Leather Black on Black -BHLM -Weathertech -Extang Solid Fold -Bedlight LEDs -TRD Skid
    Also, if you go to the top bar and highlight "Mods & Tutorials" at the bottom you will see Tire Size Calculator. That one is really helpful! :D
     
  4. Jan 29, 2009 at 8:22 AM
    #4
    NetMonkey

    NetMonkey Well-Known Member

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    Toytec Ultimate Lift @ 3", Mickey Thompson MTZ's 285/75/16, Moto Metal 955b, rear 2" ALL, Marlin Crawler sliders
    heres the math:

    take a 265/75/16 for example:

    width = 265/25.4 = 10.43"
    heigth of tire off of the rim = 265*0.75/25.4 = 7.82"
    heigth = ((265*0.75) / (25.4 x 2) + 16) = 31.64"


    description of the numbers:
    265/75/16
    width in mm/aspect ratio/rim diameter in inches
    mm to inch converstion = 25.4
    number of "sides" off of rim = 2

    width = width in mm/mm to inch conversion
    heigth of tire off of the rim = width in mm*0.aspect ratio/mm to inch conversion
    heigth = ((width in mm*0.aspect ratio) / (mm to inch onversion x number of "sides" off of rim) + rim diameter in inches)
     
  5. Jan 29, 2009 at 1:16 PM
    #5
    krisjw101

    krisjw101 [OP] Well-Known Member

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    Autobot in my rear window
    thanks so much that was really helpful!!!!
     
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