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255's and 8" wide rims?

Discussion in 'Wheels & Tires' started by DueNorth, Aug 7, 2011.

  1. Aug 7, 2011 at 3:05 PM
    #1
    DueNorth

    DueNorth [OP] Well-Known Member

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    I would like to get new mud tires soon and i'm on the fence about whether to get 255's or 285's. Since i'm running an 8" wide rim i'm concerned about the 255's. Is this rim a little to wide for it? Will it cause me to blow a bead more easily if aired down? Where i live, i'm mostly on the trails and there's quite a bit of rock so airing down is a must. I've talked to a couple of tire shops and they both wouldn't recommend it. Any thoughts?
     
  2. Aug 7, 2011 at 3:12 PM
    #2
    98tacoma27

    98tacoma27 :POOPCORN: Thor

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    The Goodyear Kevlar 255/75-17 is approved for an 8" rim.

    255/85-16 KM2's are also approved for an 8" rim.

    Bottom line is that it depends on the manufacturer's specs.
     
  3. Aug 7, 2011 at 3:18 PM
    #3
    08pretaco

    08pretaco Almost there

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    I got the Cooper ST on a 8" wide rim, no issues
     
  4. Aug 7, 2011 at 4:27 PM
    #4
    DueNorth

    DueNorth [OP] Well-Known Member

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    I know the KM2's are approved for an 8" wide rim but recommended width is 7.5" I was just wondering in the real world (with airing down to 10 psi or so) if i would have any problems blowing beads while in the rocks and such.

    Good to know and thanks for the response! Do you air down much? If so, how much do you air down?
     
  5. Aug 7, 2011 at 4:28 PM
    #5
    08pretaco

    08pretaco Almost there

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    iv gone down to about 15 maybe, no issues thus far!
     
  6. Aug 7, 2011 at 4:30 PM
    #6
    DueNorth

    DueNorth [OP] Well-Known Member

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    Nice! Do you notice the tires bulging more near the rims than the actual tread width?
     
  7. Aug 7, 2011 at 4:32 PM
    #7
    08pretaco

    08pretaco Almost there

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    seems pretty centered on the tire to me, to be perfectly honest never really noticed though. Maybe I will air it down and shoot a pic for you to see.
     
  8. Aug 7, 2011 at 4:33 PM
    #8
    DueNorth

    DueNorth [OP] Well-Known Member

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    I would really appreciate that. Anywhere from 10 to 15 psi would be perfect. I'm really curious to see that.
     
  9. Aug 7, 2011 at 5:12 PM
    #9
    08pretaco

    08pretaco Almost there

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    It might not be till tomorrow though idk where my air compressor is lol
     
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