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Tires.....it's enough to make your head spin.

Discussion in 'Wheels & Tires' started by Moon Landing, Jul 4, 2021.

  1. Jul 12, 2021 at 3:43 PM
    #31
    kmeeg

    kmeeg LionRunner

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    According to some sites suggested pressure is 44psi. But 40psi put at tire shop it self was too much for my comfort. 34-35psi is my choice for KO2 LT265/70R17 Load C.
    upload_2021-7-12_16-40-30.jpg
     
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  2. Jul 12, 2021 at 3:46 PM
    #32
    Moon Landing

    Moon Landing [OP] AFFTC 1967/68 Eddies Air Patch

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    BFG's inflation tables for your specific tire.
    https://tirepressure.com/lt265-70r17-tire-pressure

    The range appears to be 35 psi under normal load conditions of (<3,800 lbs per axle) and up to a max of 50 psi when fully loaded - or - when the trucks max carrying weight is approached(GVWR).

    EDIT:
    "LT265/70R17/C 112 tire with load range C and load index of 112 has a maximum single tire load capacity of 2470 lbs(X2) @ 50 psi, capable of supporting up to 2470 pounds or 1120 kilograms."
     
    Last edited: Jul 12, 2021
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  3. Jul 12, 2021 at 3:52 PM
    #33
    kmeeg

    kmeeg LionRunner

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    @Moon Landing just for fun use BFG customer service chat and ask what's the correct tire pressure for a stock 4Runner with LT265/70R17 Load C. I got the response "50psi". I asked again and the agent still said 50psi. I was....
    upload_2021-7-12_16-50-38.jpg
     
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  4. Jul 12, 2021 at 3:56 PM
    #34
    Moon Landing

    Moon Landing [OP] AFFTC 1967/68 Eddies Air Patch

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    Pass. My preference is to trust BFG's chart over a clerk who, at best, is looking at a decision tree he/she likely doesn't understand.
     
  5. Jul 12, 2021 at 4:06 PM
    #35
    kmeeg

    kmeeg LionRunner

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  6. Jul 12, 2021 at 4:08 PM
    #36
    stephencovar

    stephencovar New Member

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    BFG KO2's 265/70/17 C Load
    thank you for the response. Are there any drawbacks to have the psi set to 34-35 vs the recommended 44psi?
     
  7. Jul 12, 2021 at 4:11 PM
    #37
    stephencovar

    stephencovar New Member

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    There’s so much to this lol. So if I lower the tire pressure to 35 psi, I should be ok? Is there a downside to this? Im not hauling anything. My rig is my daily driver with the occasional off road/fire road adventure.
     
  8. Jul 12, 2021 at 7:13 PM
    #38
    Moon Landing

    Moon Landing [OP] AFFTC 1967/68 Eddies Air Patch

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    Haven't researched it, but it fills the bill as far as the 3 peak requirement you mentioned in post #12. Choices :notsure:
     
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  9. Jul 12, 2021 at 7:15 PM
    #39
    Moon Landing

    Moon Landing [OP] AFFTC 1967/68 Eddies Air Patch

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    If there's a downside? I don't know what it would be. Those inflation charts are put together by the engineers who developed the tires. Give it a go and see how they ride.
     
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  10. Jul 13, 2021 at 6:41 AM
    #40
    olliechristoper

    olliechristoper New Member

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    1st off, thank you for your service Sir.

    I have tried a bunch of different tires and pressures over the years. My take is simply experiment. As long as they are not too low then all is good. When towing or hauling a heavy load I go max pressure on the side of the tire. When empty and normal loads then the sticker on the vehicle is a safe bet with OEM sized tires.

    I have settled into a simple 32psi front/36psi rear when cold on everything I own for years and no tire failures. This is on my motorcycles and trucks/SUV's/sedans. This is of course pavement only.

    Off road I'm all over the place with psi on my motorcycles. Tubliss system and AT81 RC tires I have run as low as 0psi rear and 6psi front on nasty trails. Desert racing with double rim locks and UHD tubes it's 14psi front and rear to prevent pinch flats.

    Now that I'm getting into 4 wheel off road I have been experimenting when getting in the dirt. I have tried 20psi on fire roads, ruts, mellow rocks, washboard. A few weeks back I woke up to my tires at 16psi after cooled down. I ran them as is in the morning and they did fine for about 8 miles until I hit the pavement. Then back to 32/36psi.

    I'm curious, do the 4 runners actually show psi on the dash TPMS? Is there a buzzer when you air down?

    Now for tire choices. On my pickups I have worn out sets of E rated and C rated tires. I personally would not recommend an E rated tire on a 4Runner or truck that does not exceed the weight rating marked on the side of the tire. E rated tires are very heavy and ride extremely rough when compared to a LT C rated tire.

    The argument I always hear why to run E rated tires is sidewall and overall construction being beefier. My argument to that is those heavier tires accelerate steering component wear and the ride sucks. It's simple physics. My plan is to keep the OEM size or +1 size up max for a daily driver.

    Problem with the 4Runner is tire choices drop in the toilet for 275/70 x 17. Very few to choose from. The market is hot for the oversized 285/70 X 17 size. After a few trips in my 2WD truck I have realized good line choice and slowing the speed down does wonders for navigating and getting through harsh terrain. FWIW I have been on 265/70 x 17 tires for around 8 years now. I'm rolling on the LT C rated Michelin Defenders.
     
  11. Jul 13, 2021 at 10:43 AM
    #41
    Spriggs53

    Spriggs53 New Member

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    Tires are so neat.
     
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  12. Jul 13, 2021 at 2:45 PM
    #42
    kmeeg

    kmeeg LionRunner

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    I couldn't help myself. I canceled the Nokian Rotiiva order and ordered Goodyear Wrangler Duratracs in stock size (since they don't have 275s).
     
  13. Jul 13, 2021 at 6:33 PM
    #43
    7Runner

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    I'm on my second set of that exact tire and run mine at 36psi. I've run various pressures over time and I found it the best balance of ride quality, fuel economy, and tire wear. I'll drop them down to 32-33psi in the winter with snow and ice.
     
  14. Jul 13, 2021 at 6:36 PM
    #44
    Doubleduty

    Doubleduty Life is better on the mountain

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    32, period. Unless I'm off road and need to air down.
     
    Last edited: Jul 13, 2021
  15. Jul 13, 2021 at 8:03 PM
    #45
    Moon Landing

    Moon Landing [OP] AFFTC 1967/68 Eddies Air Patch

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    Exact same tire?
     
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  16. Jul 14, 2021 at 11:25 AM
    #46
    Moon Landing

    Moon Landing [OP] AFFTC 1967/68 Eddies Air Patch

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  17. Jul 14, 2021 at 11:47 AM
    #47
    kmeeg

    kmeeg LionRunner

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    Beadlocks that does not look like Beadlocks from outside? Hell yeah..!!!

    It would be so awesome to run lower pressures without having to be worried. I run lower pressures on winter runs and absolutely scared as I'm not a cold temp person.


    BTW, what is the big deal about Beadlocks? Is it a big risk on road?
     
  18. Jul 14, 2021 at 11:50 AM
    #48
    Moon Landing

    Moon Landing [OP] AFFTC 1967/68 Eddies Air Patch

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    Answer: Watch the video. ;)
     
  19. Jul 27, 2021 at 5:48 AM
    #49
    RonT4R

    RonT4R New Member

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    I just finished lifting my 4Runner and installing a Relentless Fab Defender front bumper and winch. Now my 4Runner looks like it skipped “Leg Day” at the gym. Looking to go up to a 285 size tire but just not sure which tire. All of the well known brands are optional. I have heard and read good and bad things on them all but in the end it’s the buyers personal preference. I am currently running Nitto Terra Grapplers but I know I will want something a little more aggressive in the next set.
     
  20. Jul 27, 2021 at 7:03 AM
    #50
    olliechristoper

    olliechristoper New Member

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    It seems the popular choice for these rigs is the 285/70x17. I have experience running heavier than stock tires and don't want the headache. 10lbs plus more on each wheel adds up to a lot of rotating mass. I loathe unnecessary repairs due to my poor choices of tire size. I am and never have been into vehicles just for the "look". I'm all about function over aesthetics.

    The wear on components vs capability does not add up in my mind. My current truck had one size over E rated tires. Less than 70,000 miles later both tie rods were shot and my hub bearings gone. At that point I had almost zero off roading other than forestry roads to get my bike staged. Both my mechanic and I determined the tires were the cause of such short component life.

    I found the lightest tire I could in the 265/70x17 size. The handling, steering, and overall ride quality is night and day. I have Helwig HD sway bars front and rear and also Helwig Silent Bushing overload springs. The ride is firm yet plush. 32psi front 36psi rear and 20psi off road. I'm running the Michelin Defenders.

    I also have discovered that aggressive tread pattern is not needed. Those Bridgestone Dualers that come stock are more than sufficient for anything short of mud. OEM size tires are going to be more than enough capability.

    I figure after I get my 4Runner I'll go whole hog on adjustable suspension, UCA's, with a mild 1" lift front and rear. Add on a hidden winch and steel skid plates and the mass will be down low where it counts. I know I will not be taking my rig rock crawling. It's going to be my wife's and I's daily driver. And naturally I will be getting a hitch carrier to transport my bike!!
     
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  21. Jul 27, 2021 at 4:26 PM
    #51
    nimby

    nimby in the drink

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    Not all 285's are heavy.

    I think the stockers are something like 38 lbs. Don't know exactly, but I think that's what I read.

    I have a set of 285/70/17 Firestone Destination A/T's that are 42 lbs each. They have been a fantastic tire too.
     
  22. Jul 27, 2021 at 5:47 PM
    #52
    Thatbassguy

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    I agree that oversized tires are not necessary for mild off-roading, and the added footprint might not be worth the added wear for many. If, you're still considering options, there are some SL rated tires that are pretty light in 285/70/17.

    As far as capability vs stock size, it's not only a matter of ground clearance, IMO. I was after a larger overall footprint. I am prepared for the early tie-rod/bearing/etc replacement. :D

    Good point! I'm still considering a set of SL 285's to replace my Toyos for fall/winter/spring duty.
     
  23. Jul 28, 2021 at 5:48 AM
    #53
    Fishbum

    Fishbum New Member

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    I need some advice with the whole tire thing. Basically my 4Runner will be my daily driver with maybe some very light off road to get to campsites but I have a trail rig Wrangler so the 4Runner will not see any hard four wheeling. I'm putting on a 2-in lift and the TRD pro Wheels. I'm up in the air between 275 and 285 and I'm wondering if I could do a 285 in a standard load or if that is asking for trouble. This vehicle will only ever see any real weight in it the once or twice a year I have to haul mulch or wood with a trailer. Other than that it will be luggage and dogs. I'm open to all advice and any options be it sea load or standard load if we think that would work. But I feel like my head is just completely spinning looking at all this tire nonsense
     
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  24. Jul 28, 2021 at 5:50 AM
    #54
    Fishbum

    Fishbum New Member

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    Also is there any benefit to a c load over a standard load when it comes to just general puncture resistance in day-to-day driving
     
  25. Jul 28, 2021 at 6:41 AM
    #55
    Thatbassguy

    Thatbassguy New member? Really??

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    If you're going to lift it, I would go with a 285 in SL rating. But, you might need to do a bit of trimming. 275's might fit better, but there aren't any SL options in that size. If you don't want to do any trimming, a 275 in LT/C might be a good compromise.

    As far as load capacity, the stock size SL tires are able to support the GVWR so a larger SL tire will be fine.

    I'm sure there is. But, I've driven hundreds of thousands of miles on SL tires and have only had one flat due to a puncture. If you're going to be on construction sites often, it might be worthwhile. Otherwise, I'd go SL.
     
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  26. Jul 28, 2021 at 8:07 AM
    #56
    Fishbum

    Fishbum New Member

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    Okay thank you as far as SL tires go what would be a good brand/ model to start looking for a quality tire.
     
  27. Jul 28, 2021 at 8:23 AM
    #57
    Thatbassguy

    Thatbassguy New member? Really??

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    There are a bunch of good options. I had Yokohama Geolander AT's on my previous 4Runner and they were great.

    Are you looking for something aggressive looking? Or, just a good all around tire?
     
  28. Jul 28, 2021 at 8:24 AM
    #58
    Fishbum

    Fishbum New Member

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    I'm very open. I mean I naturally like the thought of something that looks kind of aggressive but I have two other sets of Yokohama tires that I'm very happy with
     
  29. Jul 28, 2021 at 12:35 PM
    #59
    nimby

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    All these are great and have 285's available in an SL rating:

    Yokohama Geolander
    Firestone Destinations
    Falken Wildpeaks
     
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  30. Jul 28, 2021 at 1:27 PM
    #60
    Thatbassguy

    Thatbassguy New member? Really??

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    Also, the Toyo AT3 is available in 285/70/17 SL and comes in at just 46# IIRC.

    The Pirelli Scorpion is another excellent AT that doesn't seem to get much attention.
     
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