View Poll Results: What PSI do you run
20psi and up 46 41.07%
20psi and up
46 41.07%
No lower than 15psi 57 50.89%
No lower than 15psi
57 50.89%
10 to 12psi 8 7.14%
10 to 12psi
8 7.14%
10psi and below cuz beadlocks 2 1.79%
10psi and below cuz beadlocks
2 1.79%
Multiple Choice Poll. Voters: 112. You may not vote on this poll

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Old 08-17-2020, 06:40 PM #31
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Quote:
Originally Posted by JAXJeremy View Post
I have yet to take the 4R in anything requiring me to significantly air down, but I wouldn't hesitate to go to 12 or 14 in soft sand..

On my off road rig, 37 inch toyo MT's 14.50x15 I regularly air down to 12 PSI and I don't have bead locks..only once did I have an issue where the side wall got up against some limestone which in turn got ground into the bead and caused a leak.

If you're cruising trails where you want the comfort of some extra traction, I would think anything between 15 and 20 would help a lot on the 4Runner..
I was doing Gold Mountain which has 2 large water falls ... And I was told that 15psi was still too high. I'm on 35x12.5x17
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Old 08-17-2020, 06:44 PM #32
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Quote:
Originally Posted by patkelly4370 View Post
Here's Toyo Open Country A/T 285/70R17 on Mickey Thompson "Deegan 38" wheels at 15 psi. First photo is 38 psi.
Truck weighs about 5,500 lbs

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damn what the heck do you have in there ?!?!? I'm at 5660lbs with out my tire carrier swing out ... Thats front bumper, full skids ( minus diff skid ) , sliders, roof rack, tools, 3rd row
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Old 08-20-2020, 11:56 PM #33
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305/70/17 MTRs. 31psi on road in winter, 35 summer. Normal trails 10, rocks 6-8, snow 4. No bead locks, never lost a bead.
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Old 08-21-2020, 12:16 AM #34
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I usually run 18-20 psi on 285/70 r17 ko2s load E
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Old 08-21-2020, 08:04 PM #35
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285/70/17 MT Baja ATZP3 E load range

Run 40 on the road
20 off road. Sometimes 18 if on the sand.
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Old 08-22-2020, 12:39 PM #36
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LT 285/70R17 C-Load

16psi on very rocky terrain 40psi on road.

Dont remember weight but 4 people, 2 dogs full load inside and full load on roof for camping.
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Old 08-22-2020, 02:50 PM #37
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KO2 265/70R17 C- load

On road 36 psi
Off road 12 psi

2010 Trail with factory wheels.
Mainly drive on trails with loose rock sharp rock, roots and pot holes. Basically logging trails in in BC.
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Old 08-22-2020, 06:14 PM #38
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Factory TRD Sema (Pro) wheels and factory installed Nitto Terra Grapplers (265/70) that came on my 19 ORP

We're in Louisiana, so it's mostly washed out roads (the street, not offroad), gravel and dirt roads, mud, roots & stumps, and not a whole lot of rocky terrain (there is some in N Louisiana).
I'm usually around 38-40psi on road, 18-20psi offroad.

I'll be swapping to 255/80 Nitto Ridges and 17x8 0 offset wheels after I get my lift installed and the Sema/Pros & TerraGrapps will go on my wife's 19 Taco TRD OR.
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Old 08-24-2020, 02:27 PM #39
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LT 275/70/17 on TRD Pro wheels. I like around 20/25psi Offroad and around 42psi on road.
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Old 08-25-2020, 01:14 AM #40
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12 psi

BFG KM3 295/70R17
SCS Ray 10 17x8.5 -10mm
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Old 08-25-2020, 09:40 PM #41
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Ran 10psi the other night doing a recovery at a wash. Not soo bad.

But I think I'll reserve it for when I'm in soft sand. I'm going to try 12psi at John Bull Trail this Saturday
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Old 11-08-2020, 12:52 AM #42
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Quote:
Originally Posted by TheWraith View Post
I've been wondering...



What tire pressure you guys run while on dirt and climbing shelves and rocks...



Please post make and tire size on your rig. If you know the weight of your rig; pls post as well

Im used to running low on my other rig with beadlocks. 4runner was built for over landing and medium trails...

I have 285/75/17 KO2s. I got them because that seemed to be the most popular choice from the 5th gen 4runner community.

Sitting on a 17x9 wheel as it was tough to find anything good looking with a slimmer width.

I run 30 psi on road. Seems to be sweet spot for comfort with my heavy rig.

18 psi on fire roads and sand sucked (tried it once). I air down to 15 psi. On overnights it will be down to 12 psi until tires warm up to 15 psi.

I go very hard in the sand (40-60 MPH is average for me)... I’ve had three slow leaks already from under 1500 off-road miles. All from sand getting between tire and rim.

I’ve popped a bead on Gold Mountain (hard corner didn’t take bypass).

The worst part is I’ve shredded the sidewalls on the KO2s. This is because I run “low” per overlanding standards.

Ive ran much more off-road miles on various mud terrrain ties with 5-8 psi and haven’t shredded as much sidewalk as I did this past year on KO2s.

I haven’t tried crawling with 20 PSI (and never would)... but at 15 psi my KO2s barely hold rocks. Their sweet spot seems to be 8-10 psi.

Point is... you wanna run as low as possible in most cases... as 20 PSI sucks when going fast or crawling... but if your going any decent speed or doing and decent crawling... your going to pop beads or get leaks. So your stuck at 15-20 psi.

I gave up trying and got beadlocks. Switching to cooper Maxx to see how they do before I go back to mud terrains (which I don’t want to do on an over lander).



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Old 11-08-2020, 02:09 PM #43
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Quote:
Originally Posted by OffKamber View Post
Im used to running low on my other rig with beadlocks. 4runner was built for over landing and medium trails...

I have 285/75/17 KO2s.
No intent to start a lengthy discussion, but it is built for whatever you build it for their are plenty around here across multiple different gens on some of the burliest or burly trails. A lot of it is the driver and not necessarily the truck. There are of course plenty of those that think they can buy into experience rather than earn it, which makes your statement much more valid

What load range? Assuming E? They do come in C too, but I think you should clarify.
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Old 11-08-2020, 07:07 PM #44
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Quote:
Originally Posted by jrandom View Post
No intent to start a lengthy discussion, but it is built for whatever you build it for their are plenty around here across multiple different gens on some of the burliest or burly trails. A lot of it is the driver and not necessarily the truck. There are of course plenty of those that think they can buy into experience rather than earn it, which makes your statement much more valid

What load range? Assuming E? They do come in C too, but I think you should clarify.
Load Range E.

No need for lengthy discussion... I agree with you 100%.
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Old 11-08-2020, 07:41 PM #45
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265/70r17. 16-18psi. Goodyear Wrangler UltraTerrain AT. E.
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