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Old 03-25-2016, 10:05 PM
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Tire pressure on and off road

Is there a happy compromise for on and off road? 20psi? For local offroad trips where I don't want to rattle my teeth in the dirt bit don't want to air up afterwards. Is anyone else running under 30psi on the street?

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Old 03-25-2016, 10:23 PM   #2
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What size tires? I run 25/24 on the street with 33s, my TJ is also pretty light and MTR/Ks which are pretty stiff.. My wheels are also really old and I'm pretty sure they all leak air past the bead because I periodically have to refill them. I usually don't notice until they drop under 20 psi.

I also don't put a lot of miles on the Jeep so I don't really care if they wear fast, they are already 5 or so years old with a ton of tread left.

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Old 03-25-2016, 11:42 PM
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Sorry, 33" bfg AT's. I don't drive it much on the street. Just to and from trail. Not worried about tire wear.
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Old 03-25-2016, 11:47 PM   #4
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18 ish would be fine if you kept the speeds way down & didn't have to travel too far.
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Old 03-26-2016, 01:05 AM   #5
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Quote:
Originally Posted by oceanjake View Post
Is there a happy compromise for on and off road? 20psi? For local offroad trips where I don't want to rattle my teeth in the dirt bit don't want to air up afterwards. Is anyone else running under 30psi on the street?
Well,
Without getting too sarcastic and abrasive here, my thoughts are don't be so lazy. Airing down is one of the best things you can do for both you and your jeep for quality off roading. It not only allows for the tires to grip any rocks, obstacles and more but, it also provides seriously better traction by providing a larger and softer footprint. You'll have considerably less effort needed to negotiate tough spots due to the tires being softer for "gripping" the terrain instead of spinning a hard, smaller footprint, thus causing ruts, terrain damage and more. Not to mention it's a lot easier on your Jeep by going slower or, using the advantage of low tire pressure to get from point A to B.

Then there's the ride. While some may not give a rats a$$ about ride, I do and so does the wife. It's much easier on your passengers when they're not bouncing all over the cab.

Then, airing back up is no big deal. Take a few minutes to bring them back up to safe, stable, better handling air pressure.

Now, you don't have to do any of this and, just run what you like, it's up to you. Your choice, your jeep, your ride. You decide what's good for you.
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Old 03-26-2016, 01:21 AM   #6
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I'm with fire up 100% on this except one thing. He's not lazy, he's cheap and doesn't want to buy a compressor. BTW, listen to who ever you want but, I wouldn't run my tire pressure at 18 PSI all the time.
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Old 03-26-2016, 09:45 AM   #7
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Too low of a pressure on the road at speed will cause excessive tire heat which can lead to blow outs. Too much pressure on trails is not good as it limits traction and makes for a very hard ride. There is no "one pressure fits all." You're better off buying a small $50 compressor and a $38 tire deflator Currie tire deflator
and airing down/up as needed.
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Old 03-26-2016, 10:48 AM   #8
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Or for about half that price this can be hooked to air line for inflation has a trigger to add air and a button to release air and a gauge
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Old 03-26-2016, 11:34 AM   #9
Knows a couple things...

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There is no single air pressure that is going to work well enough for both street and offroad. When it's high enough for the street so the tire doesn't overheat or wear unevenly, it's too high to be of significant benefit offroad.

My way of thinking if a person can afford to put gas into his Jeep, he can afford to buy some kind of an air compressor.
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Old 03-26-2016, 11:52 AM   #10
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Amazon can be your friend....I picked up a small Viar compressor for less than $65, and it only takes about 3-4 minutes to bring my pressure back to my 29LBS I run on street, and I also bought some no name deflators, that I only paid about $20 for, and woork flawlessly once set to the 14Lbs I usually run off road with my BFG's.
A small hand held tire chuck and you are done! I went ahead and hard wired my unit to the power center, and mounted where the ABS would be if I had one..

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