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Wheels for 255/80/17

Discussion in '3rd Gen. Tacomas (2016+)' started by rnicholls, Jul 20, 2017.

  1. Jul 20, 2017 at 10:38 PM
    #1
    rnicholls

    rnicholls [OP] Well-Known Member

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    Looking for a wheel to fit 255/80/17 tires on stock 16 TRD OR. Would prefer 17x7, but 17x8 will do. Originally planned on Konig countersteer six shooter but I'm not sure about fitment at 0mm offset.

    I also found these: https://www.tirerack.com/wheels/Whe...coma+4WD&autoYear=2016&autoModClar=Double+Cab

    not sure I like the look but theres more offset options. I think a 16x8 required 4.5 BS at 0mm offset. I could be wrong, I cant find any proof of this other than my memory.
     
    Last edited: Jul 21, 2017
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  2. Jul 21, 2017 at 3:46 AM
    #2
    Taconator_

    Taconator_ Well-Known Member

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    What about the 4runner TRD Pro wheels? 17x7 with +4mm offset, should fit 255/80/17. I personally like them.
     
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  3. Jul 21, 2017 at 3:49 AM
    #3
    TacoCat

    TacoCat These pretzels are making me thirsty

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    I run atx mojaves 17x8 0mm offset with 4.5bs.
     
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  4. Jul 21, 2017 at 3:52 AM
    #4
    TacoCat

    TacoCat These pretzels are making me thirsty

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  5. Jul 21, 2017 at 4:45 AM
    #5
    splitbolt

    splitbolt Well-Known Member

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    Are you only worried about suspension clearance?

    Stock OR is; 16x7 ET +25mm/5" backspace
    16x8 or 17x8 ET 0/4.5" backspace

    17x7? Good luck...

    Personally I would want a 17x8 ET +12mm. I don't need or want 'stance'.
    I wish more wheel manufacturers would do 8" with positive offsets. I've only found a couple that do, but i'm not to keen on their offerings.
     
    Last edited: Jul 21, 2017
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  6. Jul 21, 2017 at 6:47 AM
    #6
    rnicholls

    rnicholls [OP] Well-Known Member

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    I like them as well and in theory they should fit the tire. Just looking for someone who's done it.
     
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  7. Jul 21, 2017 at 6:48 AM
    #7
    rnicholls

    rnicholls [OP] Well-Known Member

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    I'm fairly confident I can clear the suspension with 0 offset. Not so sure on the fender and stuff.
     
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  8. Jul 21, 2017 at 7:39 AM
    #8
    splitbolt

    splitbolt Well-Known Member

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    The tires will protrude about 1" more than stock.
    Tire is plus 3"; so 1.5" close to fender well/cab mount.
    I'd see what a 1"x1.5" block sitting on the outside corner of the oem tire looks like at lock.
     
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  9. Jul 21, 2017 at 8:05 AM
    #9
    rnicholls

    rnicholls [OP] Well-Known Member

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    Based on every calculator I'm finding a 255 80 17x8 with 25mm offset will fit exactly the same as a 255 85 16x7 with 25mm offset. How does this work? I'm super confused by this. Is it the increase in width by 1 inch?
     
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  10. Jul 21, 2017 at 11:01 AM
    #10
    rnicholls

    rnicholls [OP] Well-Known Member

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    Gravitating toward the crushers. Is 10mm or 25mm offset a safer bet? I know it's pretty uncharted but numbers don't lie.
     
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  11. Jul 21, 2017 at 1:04 PM
    #11
    splitbolt

    splitbolt Well-Known Member

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    There's rim width and then there's wheel width...
    Rim width is inside-to-inside; wheel mfrs. give this dimension for sizing tires.
    Wheel width is outside-to-outside, so yes, add .5" for each wheel flange. Backspace is hub-to-outside of inner flange.
    Most online offset calculators don't account for this.

    Examples:

    16x7 et +25mm=8" wheel width
    8" wheel width/2=4"
    4" +(+25mm)=5" backspace
    8" wheel width - 5" bs=3" protrusion

    8" rim et +12mm=9 wheel width
    9" wheel width/2=4.5"
    4.5" +(+12mm)=5" backspace
    9" wheel width - 5" bs= 4" protrusion

    8" rim et 0mm=9" wheel width
    9" wheel width/2=4.5"
    4.5" + 0mm=4.5" backspace
    9" wheel width - 4.5" bs= 4.5" protrusion

    8" rim et -12mm=9" wheel width
    9" wheel width/2=4.5"
    4.5" + (-12mm)=4" backspace
    9" wheel width - 4" bs= 5" protrusion
     
    Last edited: Jul 21, 2017
  12. Jul 21, 2017 at 1:17 PM
    #12
    rnicholls

    rnicholls [OP] Well-Known Member

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    Oh god:goingcrazy::goingcrazy::goingcrazy:
     
  13. Jul 21, 2017 at 1:18 PM
    #13
    splitbolt

    splitbolt Well-Known Member

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    I edited and added more stuff.:D
     
  14. Jul 21, 2017 at 1:19 PM
    #14
    rnicholls

    rnicholls [OP] Well-Known Member

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    So then the backspacing is different on a 17x8 et25 and a 16x7 et25. Which could affect clearance.
     
  15. Jul 21, 2017 at 1:24 PM
    #15
    splitbolt

    splitbolt Well-Known Member

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    Yes.
    8" et 25mm is 5.5" backspace
    7" et 25mm is 5" backspace (stock oem)
     
  16. Jul 21, 2017 at 1:33 PM
    #16
    rnicholls

    rnicholls [OP] Well-Known Member

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    So 12mm is an equivalent offset for any 8 inch rim no matter the diameter?
     
  17. Jul 21, 2017 at 1:33 PM
    #17
    splitbolt

    splitbolt Well-Known Member

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    Here's the online calculator I use.
    I like it because it accounts for the section widths of a tire mounted on different width wheel.
    I also like it for the scrub radius calculation.
    The same size tire, mounted on a 7" will have a different section width than when mounted on a 8".
    Like I said, it doesn't account for flange thickness, so it's backspace calculation is off 1/2".
    https://www.wheel-size.com/calc/
     
  18. Jul 21, 2017 at 1:36 PM
    #18
    splitbolt

    splitbolt Well-Known Member

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    As far as backspace, yes.
     
  19. Jul 21, 2017 at 1:37 PM
    #19
    rnicholls

    rnicholls [OP] Well-Known Member

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    What else am I missing? If the backspace and height is the same as a stock wheel, would it not fit the same?
     
  20. Jul 21, 2017 at 1:42 PM
    #20
    splitbolt

    splitbolt Well-Known Member

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    If you mean the same offset/backspace and width, yes.
    Diameter has nothing to do with offset or how far it sits in or out.
     

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