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What’s up with the SR5 tire size?

Discussion in '3rd Gen. Tacomas (2016+)' started by Kidlin, Jul 27, 2021.

  1. Jul 28, 2021 at 9:46 AM
    #21
    Nw_nomad

    Nw_nomad Well-Known Member

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    265/75r16?
     
  2. Jul 28, 2021 at 9:59 AM
    #22
    usmc2msu

    usmc2msu Well-Known Member

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    Sorry, they are 245/75...I swore I jumped up a larger size, but just ran out to check.

     
    davidstacoma likes this.
  3. Jul 28, 2021 at 10:02 AM
    #23
    Nw_nomad

    Nw_nomad Well-Known Member

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    Gotcha. No worries. I wish they had a slightly more aggressive sidewall but otherwise looks like a great all terrain tire
     
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  4. Jul 28, 2021 at 10:08 AM
    #24
    Taco_mike73

    Taco_mike73 Well-Known Member

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    IMG_20210610_092845.jpg
    Here you go. These are the Walmart/pep boys version the tread May be a little bit different than the AT3 but should be the same size. I have black side out. IMG_20210610_092834.jpg
    IMG_20210720_160532.jpg
     
    Last edited: Jul 28, 2021
    Nw_nomad and rsimi72 like this.
  5. Jul 28, 2021 at 10:16 AM
    #25
    usmc2msu

    usmc2msu Well-Known Member

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    They've been awesome on ice and the best tire (besides a dedicated snow tire) I've ever had in snow. I've been in snow up to the top of the front bumper and it has easily gotten through it.

     
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  6. Jul 28, 2021 at 10:27 AM
    #26
    MNFinn7300

    MNFinn7300 Well-Known Member

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    Really glad this thread got made. I'm getting a SR and wasn't real pleased with tire size. I'm planning on upping the size. Seeing the SR5s with bigger tires gives me an idea of what I'll be looking at. Thanks all for this discussion.
     
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  7. Jul 28, 2021 at 10:32 AM
    #27
    azreb

    azreb Geezer

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    I had fairly new 265/75R16LTs, 10 ply rating, on my '09 before selling it. Had them put on my '20 SR5. They work great. The speedometer is correct, according to the radar speed checks in various towns. Gas mileage is in the neighborhood of 22-23 mpg (haven't calculated it recently).
     
  8. Jul 28, 2021 at 10:48 AM
    #28
    Marshall R

    Marshall R Well-Known Member

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    265/70/16 is an optional size. It is the same overall diameter as stock 245/75/16. just about 3/4" wider. There are no downsides to going to the wider tire except cost. 265/70/16 is not a common size and you find 265/75/16 cheaper, and with a lot more options. Compared to stock, 265/75/16's are about 1" taller and 3/4" wider than what you have. That is the biggest size you can run with zero modifications and virtually no downsides.

    They are a little larger diameter and in theory reduce power, but in my experience it isn't enough to notice. The next size up is either 255/85/16, or 285/75/16. You'll probably need to modify the truck to make them fit and there is enough power loss to notice unless you also re-gear.
     
  9. Jul 28, 2021 at 11:28 AM
    #29
    Kidlin

    Kidlin [OP] Well-Known Member

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    Thank you for the info on that. I didn’t want to have to mess with anything like that had thought when I bought the truck it would come with 265/75/16’s. I never planned to go any bigger just would swap out for my all terrains of choice.
     
    2wdSR52022 likes this.
  10. Jul 28, 2021 at 11:29 AM
    #30
    Thunder Fist

    Thunder Fist Well-Known Member

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    Like, so many.
    265/75R16 with no issues!
     
  11. Jul 28, 2021 at 11:30 AM
    #31
    Kidlin

    Kidlin [OP] Well-Known Member

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    Thanks for the break down and info. Based on what I’m hearing from everyone 265/75/16’s should work just fine. Since it’s such a modest increase in size I’d hope/imagine any power or mpg loss would be very minimal. It may even make the truck shift a little better
     
    2wdSR52022 likes this.
  12. Jul 28, 2021 at 11:55 AM
    #32
    Woodrow F Call

    Woodrow F Call Kindling crackles and the smoke curls up...

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    Oh, something to think about (I haven't checked the specs to verify), bigger means heavier and gas mileage will drop.

    Toyota gets around this by using the Kevlar AT tires (bigger, but lighter materials).

    When stock, I could get 24 mpg if trying. Now that I got tires that are almost twice as heavy, I'm looking at 19 mpg if trying.
     
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  13. Jul 28, 2021 at 1:07 PM
    #33
    Taco_mike73

    Taco_mike73 Well-Known Member

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    If you go with the LT 10 ply tires you are going to add some additional weight. that definitely will hit the power and fuel economy more than a standard load tire.
     
  14. Jul 28, 2021 at 1:27 PM
    #34
    gudujarlson

    gudujarlson Well-Known Member

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    While tire size might be a factor, it is not likely a large factor compared to others. Tire compound, tire tread pattern, rubber thickness (top and side) all affect rolling resistance and thus fuel economy. Kinetic energy is lost to heat produced when the tire flexes as it rolls. An M/T tire will likely have more rolling resistance than a A/S tire of the same size and weight; albeit it might be impossible to find such a pair of tires. The rotational inertia effects that people frequently mention on the forum are not really a factor because they are small and the energy is only lost when braking.

    EDIT: it would be super cool if tire manufactures published rolling resistance specs for their tires (car, motorcycle, and bicycle tires).
     
    Last edited: Jul 28, 2021
  15. Jul 28, 2021 at 1:36 PM
    #35
    Deacon Blues

    Deacon Blues Well-Known Member

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    265/75/16 are indeed the sweet spot. No major issues or mods needed, look good on a level truck and lots to choose from.

    [​IMG]
     
  16. Jan 7, 2022 at 6:22 AM
    #36
    FloridaCementTaco

    FloridaCementTaco Well-Known Member

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    So you wouldn’t need to lift, cut fender splash guards or anything with 265/70R16 on a stock 2021 sr5 4x4? I’ve read differing opinions on this topic on TW.
     
  17. Jan 7, 2022 at 6:32 AM
    #37
    FloridaCementTaco

    FloridaCementTaco Well-Known Member

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    They look great. Ok, so before I buy these (I like the Toyo ATs), I need to know for sure that with my 2021 sr5 4x4 with no lift - I won’t have to lift it, won’t have to change stock rims, and won’t need to cut/trim anything in the wheel Wells? I have no mudflaps, so that won’t be an issue.
     
    ..TonyBaloney.. likes this.
  18. Jan 7, 2022 at 6:39 AM
    #38
    FloridaCementTaco

    FloridaCementTaco Well-Known Member

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    Which Toyo ATs did you get. It looks like they have a couple versions in 265/75 r16. Thx
     
  19. Jan 7, 2022 at 12:15 PM
    #39
    gudujarlson

    gudujarlson Well-Known Member

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  20. Jan 12, 2022 at 9:16 PM
    #40
    2wdSR52022

    2wdSR52022 Well-Known Member

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    No modifications? Not even the mud flaps? I have an sr5 2wd. Thanks

    Or what is recommended I dont necessarily want them wider but a little bit taller.
     
    Last edited: Jan 12, 2022
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