What's the lowest comfortable tire pressure on factory Mojave/Rubicon AT/MT wheels and tires

[joeym7]

I’ve done the same thing occasionally, and thought about having the front JTM shocks rebuilt, to be adjustable. My wife’s JTHA is our preferred ride for longer trips, and the JTM is our preferred for off-road things. I thought maybe if the front fox shocks were adjustable, we could use a highway setting and then flip over to an off-road setting, without killing mpgs by running a little under inflated.

On those FOX shocks off-road, I don't really have any frame of reference because this is my first ever off road vehicle, but I do hit the hydraulic bump stops often enough which isn't too bad a noise at all, and bottom them out with a loader bang once in a while...I had a thread about this over the summer and the feedback was that it is pretty normal for a factory set-up...I probably watched too many "Trophy-Truck" vids when I started out LOL and was expecting too much from the shocks. I slow down now just a little going in to some of the holes and woops and it helps a lot in reducing the "hits".

I am not doing any after market mods on the ride, but if I were to I would probably replace the front shocks with something more beefy just for fun.

Sponsored

 

[BearFootSam]

No need to lower pressure on "fire trails" around here anyway. The MO will go through these quite easy which usually include patches of deeper sand, and some significant deep puddles with muddy bottoms. But I will caveat, they have some, but not a material amount of rocky surfaces (mostly dirt, sand, significant puddles, and mud). I usually do this in 4wd High and with Off Road + on. OR+ will blast through anything it seems and it is just more fun driving MO with it on even when it is a dirt road that doesn't actually need the extra "boost".

On the Beach I lower the pressure to 18 psi. Which is about 50% lower than the 37# factory speck. I personally think rather than picking an absolute number, the % change is a better way to think about it. With 18 psi it does just fine, and if you find you are having a hard time, again, Off Road Plus is your friend, it will blast through just about anything...And this is always in 4WD-High, although on my first beach trip when I first got MO I was cautioned to use 4WD LOW by the locals, so I did try it at first, but quickly found in reality it is not needed...Maybe 4WD-Low might help if in the rare occasion one does get stuck, but it hasn't happen to me up to this point so I couldn't say.

Overall, unless going beaching, as I don't live near a desert, I like to keep my tires around 34-35 PSI (cold), just a tad off the Factory spec., 8% to 5%, which is (not) a material amount, but I find it rides just a little nicer on pavement and works just fine on anything around here off road except the beach (where I go to 18PSI as mentioned above).

The FS roads I had in mind when saying that were those between Silverton and Lake City CO. Cinnamon pass for example is not difficult by Jeep standards but the UTVs have done a number on the road surface and there were numerous sharp rocks and step-size shelves that could be hazardous to your tires. I last crossed that pass in early June 2021 with a lifted Fozzy on KO2's. I had the cost and difficulty of recovery forefront in mind when I took the precautionary measure of dropping pressures.