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What PSI is everyone running on their factory KO2's

Rubi098

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Joined
May 9, 2024
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Location
Kansas
Current Rides
2023 392
What PSI is everyone running on their factory KO2's ? I know mine is too high, just trying to get a idea.
 
Mine are factory cold at 37 but I don't know any better.

EDIT: Mine arrived from the factory at 40-41 PSI. I had the dealership drop them to the recommendation on my door jamb sticker which was 37 PSI.
:unsure:
 
Last edited:
Look at the factory label in your door frame. Jeep tested different air pressure for tire and vehicle weight, and came up with a recommended psi. They consider handling, braking, fuel economy and ride quality. I run 36psi.
Makes sense to me that vehicles may ship from the factory with higher psi to help prevent tires from flat spotting, given some may sit for extended amount of time.
I bought 2 new Corvettes back in the 90's and both had flat spotted tires. Both cases, a factory rep came to dealership, drove vehicle and immediately authorized all four tire & wheel replacement. In both cases it immediately solved the issue. Seems low profile sidewall tires are the worst about flat spotting if parked for extended amount of time at lower air pressure.
Also remember how bad old school TSL bias ply tires were if parked for extended time.
 
I prefer mine around 30-32. I find the factory setting of 37 is too hard. It makes the steering and ride feel skittish / bouncy. However, it probably improves gas mileage.
 
Either:
We don't know better
Too cheap
Want to wear out the KO2's before upgrading.


I'm all 3. Lol
I ordered Nittos on the way home from picking mine up. Bad thing is that I ordered 35s and 6 weeks later I did a build that included 37s.
 
Only reason I've stayed with K02's is tire weight.
Tell me any other advertised 37" offroad tire that doesn't weight close to 80lbs. ?
And is C load range to match vehicle weight.
 
Only reason I've stayed with K02's is tire weight.
Tell me any other advertised 37" offroad tire that doesn't weight close to 80lbs. ?
And is C load range to match vehicle weight.
I have never looked but one of my TRX buddies could likely tell me if you want me to ask him. He researched the crap out of tire weight before going 37s.
 
Daily driving and KO2s no complaints other than picking up too many Little Rock’s in thread.

KO3 seems to be a nice upgrade after another two years.
I have to tell you, there were obstacles that I slipped on ay BOH trails,with the 37 RGs, that My wife walked with her 35 KO2s. Sometimes I think her 3.6 Rubicon X climbs better than my 392. Maybe the 4:1 transfer case. Not sure if it is really the case because I take the harder lines.
 
Running at the pressure it came from factory 40 psi, but haven’t off-roaded it yet so just local driving on paved roads. Will replace with 37s when worn out.
 
I run right around 30 on all four corners. Maybe I'm in the odd boat that likes ko2's. I have never had an issue with them in snow rain or light mud. I've got 285/75/17 on my 4runner, run a 245/75/17 on my dually, and have a 34/10.50/17 on my little frontier. When the TRX needs new rubber that BFG will be a very serious contender. Jmo.
 
Only reason I've stayed with K02's is tire weight.
Tell me any other advertised 37" offroad tire that doesn't weight close to 80lbs. ?
And is C load range to match vehicle weight.
you are not wrong
 
I have never looked but one of my TRX buddies could likely tell me if you want me to ask him. He researched the crap out of tire weight before going 37s.
please do thanks in advance
 
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