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noobie question

Discussion in '2nd Gen. Tacomas (2005-2015)' started by tmat, May 29, 2009.

  1. May 29, 2009 at 3:45 PM
    #1
    tmat

    tmat [OP] Well-Known Member

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    Treavor
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    when a rim says "16x7" or "16x10" what does the second number mean? the width?
     
  2. May 29, 2009 at 3:45 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    Yes, the wheel width. :)
     
  3. May 29, 2009 at 3:47 PM
    #3
    tmat

    tmat [OP] Well-Known Member

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    alright so. I'm planning on getting a 16x7 wheel with 4 inch of backspacing, would that fit on my stock 245/75/16 tires? and how would I be able to check this without installing it? And if you're going to point me to the tire size calculator I have no idea what numbers mean what so if you could explain it to me, thanks!
     
  4. May 29, 2009 at 4:33 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I'll break it down for ya:

    245/75/16

    "245" is the width in mm.
    "75" is the percentage of the width, that the sidewall is high....Ie...75%
    "16" is the wheel size.
    :)
     
  5. May 29, 2009 at 4:39 PM
    #5
    tmat

    tmat [OP] Well-Known Member

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    well I already knew that. but why do they make different wheels with different widths? and would certain widths not fit my tire? because the width of my tire is about 9.6" but I have never seen a 16x9.6....you know what I'm saying? help
     
  6. May 29, 2009 at 4:42 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Gonna need someone else to help here....Im not a wheel guy.
     
  7. May 29, 2009 at 4:46 PM
    #7
    jeremiekc

    jeremiekc Well-Known Member

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    Just to give you an example I am going to be running a 255/45/18 tire on my 18x8.5 rim. The tire tread width is roughly the same width as the rim. As the first number gets smaller the width of the tire will get smaller. If you are running a 16x7 rim you should look for around a 215 or 225 tire. Alot depends on the look that you are going for. I am a street guy so my knowledge of off road is very limited.
     
  8. May 29, 2009 at 4:54 PM
    #8
    jeremiekc

    jeremiekc Well-Known Member

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    If this helps here are the sizes of the wheels that I am running now and a picture of what they look like.. I hate these rims and as soon as the money god delivers I will be running X-Runner rims on it.

    Rear - Ultra Motorsports 15 x 12 - P295/50/R15 Front - Utra Motorsports 15 x 9 1/2 - P245/60/R15

    [​IMG]

    Hope this helps, if not oh well I like showing off my truck and complaining about my rims...
     
  9. May 30, 2009 at 6:57 AM
    #9
    Janster

    Janster Old & Forgetful

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    There are certain wheel widths that you can't run with certain tire widths because it affects the overall 'SHAPE' of the tire at certain air pressures. The shape & air pressure in the tire affects how the tire rides on the roadway (over-inflated or under-inflated) and affects how the tread sits on the roadway.

    Obviously, you want optimum wheel size with optimum tire width & air pressure to ensure flat tread pattern on the roadway and long tread life.
     
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