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Old 04-19-2010, 10:16 PM   #1
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Question Off Roading Tire Pressure

When I do some serious off-roadin', I take my tire pressure down to bout 20 PSI or so. What is a good pressure for any kind of off roading, rock climbing etc...

I have an 09' Wrangler Rubicon with 17"Rims & 32" tires.

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Old 04-19-2010, 10:25 PM   #2
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Old 04-19-2010, 10:29 PM   #3
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Come on out to badlands with us and I air down to 8 psi - once you get south of 14 psi you will learn what grip is off road . I am not running beadlocks either- I will post a pic to show you how much my tires bludge and wrap at 8 psi.



You really can't see it here but I am at 8-10psi
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Old 04-20-2010, 03:11 AM   #4
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Im usually at 15 PSI
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Old 04-20-2010, 06:49 AM   #5
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on the street i run 25-30psi. trail riding or muddin, sometimes i wont air down at all. sometimes i'll go 15-20. now slippery hills and rocks, off-camber stuff or alot of debris i'll run low, like 10ish. trails i've never been on i will air down to 10ish as well.

alot depends on vehicle weight, tires, and trail conditions. i'm lazy so 75% of the time i don't even bother airing down or even disconnecting my anti-sway bar unless things start giving me trouble. i don't have any bead locks either.
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Old 04-20-2010, 06:57 AM   #6
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I run 35's with 28 psi on the street and air down to 10-12 psi depending on what we're doing.

The guys I run with seem to think that it's too much air, but with the tires I have it works well.
They usually go with 8 but for me that seems a little low.

No beadlocks here either.
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Old 04-20-2010, 08:42 AM   #7
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I run 28psi in my Hankooks, I DON"T air down if it's just backroads and light rocks/hills

I will air down to 8-12 psi if it's shale/snow/hills and pulling the trailer

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Old 04-20-2010, 08:50 AM   #8
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when i didnt have beadlocks i aired down to 10 psi or around it. (8-12) but tried not to go below 10 if i could just-in-case much less and you might blow a bead (which isnt all bad but you have to reinflate to set the bead and if it gets too dirty then taking it off when you get some to clean it out... ) anyways now that i have beadlocks, i air down to about 4 psi
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Old 04-20-2010, 11:41 AM   #9
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I run 12 to 15psi. World of difference between that and 20.
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Old 04-20-2010, 12:12 PM   #10
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10 to 12 psi. Haven't ever had a problem (except being overcome by the awesomeness of all that grip!).
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Old 04-20-2010, 12:27 PM   #11
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FYI, one of the bad things about airing down-(needlessly) is you will lose 2/4" of ground clearance and if you're full skided, I guess thats OK, but

When I had my tire year supplied them, but spensive now for big tires

I've got one, but I haven't blown any beads for years and they can be a lifesaver in good/bad weather--zip-zip, tires inflated-course you need an air supply (OBA, compressor) !!!

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Old 04-20-2010, 08:10 PM   #12
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Fantastic!! You guys are always so helpful. I think next weekend when I head to the marshlands, I'll drop it down to about 12-14 and see how much more traction I gain. I'll try and get some pictures and post them on the Trail Pics area.
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Old 04-20-2010, 08:34 PM   #13
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One thing to consider is if you don't have an air source or one close to the trail to air back up.. and you have a long drive home....you may not want to go below 15.

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