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    Quick Links: BFG KO2 - 265/70/17 Load Range C - $163.99 What wheels and tires should I get. All terrain tires question What should I do with my rims Hub centric aftermarkets rims? Longer Lug Studs for 3rd Gen Tacoma? Falcon T8's

BFG Ko2 tire pressure

Discussion in 'Wheels & Tires' started by psdecoy, Sep 4, 2017.

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  1. Sep 15, 2017 at 11:33 AM
    #21
    Tac11

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    Tac11 Well-Known Member

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    285/70/17 on stock sport rims. What would you use on PSI
     
    Tac11, Sep 15, 2017
    #21
  2. Sep 15, 2017 at 2:12 PM
    #22
    splitbolt

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    splitbolt Voodoo Witch Doctor

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    LT, P-metric, or ISO-metric? If applicable, load rating number?
     
    splitbolt, Sep 15, 2017
    #22
  3. Sep 15, 2017 at 2:54 PM
    #23
    Tac11

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    Load E sorry lt I think
     
    Tac11, Sep 15, 2017
    #23
  4. Sep 15, 2017 at 2:54 PM
    #24
    Tac11

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    Tac11 Well-Known Member

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    Let me get to my tires lol
     
    Tac11, Sep 15, 2017
    #24
  5. Sep 15, 2017 at 3:08 PM
    #25
    splitbolt

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    splitbolt Voodoo Witch Doctor

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    Also need the stock tire's size and/or load index as well as the psi on your door placard.
     
    splitbolt, Sep 15, 2017
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  6. Sep 15, 2017 at 3:57 PM
    #26
    Tac11

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    Originally it had 265/65/17

    Now the bfg k02

    IMG_4881.jpg
    IMG_4884.jpg
     
    Tac11, Sep 15, 2017
    #26
  7. Sep 15, 2017 at 4:17 PM
    #27
    splitbolt

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    splitbolt Voodoo Witch Doctor

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    I'm going to assume they were a SL/110 load index. At 29 psi this gives a load rating of 2,149 lbs for P metric tires and 1,954(2,149÷1:1) lbs for LT tires.
    Here's the thing about big volumous tires such as yours; 1,954 lbs is below what the load charts list. 35 psi gives a load rating of 2,105.
    But, in the 35-45 psi range, 1 psi is about 40 lbs...so, at 32 psi, it should give you a load rating of about 1,985 lbs.
     
    Last edited: Sep 15, 2017
    splitbolt, Sep 15, 2017
    #27
    mcharfauros and Tac11[QUOTED] like this.
  8. Sep 15, 2017 at 4:22 PM
    #28
    JoeCOVA

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    Seems right. Basically you need slightly more pressure to inflate a stronger tire to meet load ratings. That tire is capable of running 80psi for heavy loads, so youre basically running around 56% inflation. Your stock P tire max inflation is 51psi so at 29psi stock your are again 56% inflation.
     
    JoeCOVA, Sep 15, 2017
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    splitbolt likes this.
  9. Sep 15, 2017 at 4:28 PM
    #29
    splitbolt

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    splitbolt Voodoo Witch Doctor

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    And... it needs less pressure in a more volumous tire, all other things being equal; namely load index.
     
    splitbolt, Sep 15, 2017
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  10. Sep 15, 2017 at 4:42 PM
    #30
    splitbolt

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    splitbolt Voodoo Witch Doctor

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    After reviewing this again; they also gave you the load rating of a P metric. The tire that comes on the 3rd gen Offroad is ISO metric. This gives a load rating of 2,149 lbs at 30 psi; not 2,234.
    This gives a load requirement of 1,954 lbs for LT tires. An LT265/70/17 has a load rating of 1,964 lbs at 37 psi.
    Sorry I missed that the first time.
     
    splitbolt, Sep 15, 2017
    #30
  11. Sep 27, 2017 at 11:44 AM
    #31
    Tac11

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    you're good with w.e. math your doing lol thanks ill pressure mine at 32. thanks!
     
    Tac11, Sep 27, 2017
    #31
  12. Sep 27, 2017 at 11:45 AM
    #32
    Trucko

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    37 on mine
     
    Trucko, Sep 27, 2017
    #32
  13. Sep 27, 2017 at 11:46 AM
    #33
    Tac11

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    what tire size?
     
    Tac11, Sep 27, 2017
    #33
  14. Sep 27, 2017 at 11:50 AM
    #34
    Trucko

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    285.75.16
     
    Trucko, Sep 27, 2017
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  15. Dec 8, 2018 at 5:34 PM
    #35
    Espoitis

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    Looks like a 3 inch lift, P285 70 R17, BFG A/T KO2
    This would give a nice comfortable ride. How would it affect fuel economy though?
     
    Espoitis, Dec 8, 2018
    #35
  16. Jun 24, 2019 at 5:19 AM
    #36
    bedubya

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    bedubya, Jun 24, 2019
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    TXpro4X4 and Kolunatic like this.
  17. Sep 14, 2019 at 4:00 PM
    #37
    Woodstock

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    Do you run the same pressure without the trailer?
     
    Woodstock, Sep 14, 2019
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  18. Sep 14, 2019 at 4:05 PM
    #38
    TXpro4X4

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    Always ran mine at 35psi even though it said a lot more.
    Also American tires recommend this psi as well.

    The tires lasted 52,000k regular rotations and my truck is an every day driver
     
    TXpro4X4, Sep 14, 2019
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  19. Sep 16, 2019 at 8:32 AM
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    Bluegrass Taco

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    Just thought I'd throw this out.

    285 75 16a (E) on 8.5" wide rims.

    Excellent wear, great ride, and all smiles at 32psi all around. Increasing wheel width over stock width rims helped several points regarding tires.

    I,'ve had (C) rated 265s (Duratracs) that didn't ride as good.
     
    Bluegrass Taco, Sep 16, 2019
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  20. Sep 16, 2019 at 8:36 AM
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    Robert Hood

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    Robert Hood, Sep 16, 2019
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Page 2 of 4

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