BFG KO2 265/65 18 PSI?

I just got these tires. Wondering what the optimal psi for my 2011 LR4? Street and Off-road (airing down). Thanks!

I run those on Compo wheels. I used to run 18 psi at all four corners but the rear looked to have too much side wall deflection so now I run 25 psi in the rears when fully loaded and 18 psi up front. Here is a pic fully (over)loaded and you can see the tires look fine at 18 front 25 rear.

Thanks for the info. Is this psi for off road or street?

todd jackson said:

Thanks for the info. Is this psi for off road or street?

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I bet it's for street.

It’s for off road I run 42 psi at all four corners on road

I've been running my KO's 265 65 18 at 38 front 40 rear psi on the street and 22 ish off road. I'm pretty impressed with the tread wear, nice and flat. They are just starting to flare a bit and make some noise, but nothing that anyone notices but myself. I'm nearing 45K miles on them. I will reload with the KO2's most likely once these are finished.

Wow, 45k miles so far. Impressive! Thanks for the advice.

We had this discussion on the forum before.
Some people contacted BFG regarding this. Those are E rates tires, not P tires and they should be run at higher pressure then LR factory P tires.
I used to run my BFG 265/65/18 at 42Psi front and 48PSI back for quite long time.
I had no problems and tire wear was very even.
After reading the thread, I just mentioned, I changed to recommended 48 PSI front and 55 PSI back for full load street / highway. No problems .The ride is a little harsher but control at highway speed is better.
For off road driving I air down to 30 PSI . Just to soften the ride. It is not for increased traction since LR4 traction control is superb. I could go much lower but 265/65/18 tire still does not have a very toll sidewall. Driving on sand would be different , but my trails are Sonoran desert, rocks .
If I can find this previous discussion I will post the link.

todd jackson said:

Thanks for the info. Is this psi for off road or street?

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was that sarcasm? .... road psi you cannot really simply ask what people use unless you know their vehicle weight. a stock lr3/4 with an E load 265/65-18 is probably barely ok using 42psi but a factory tire and size is fine at 42. If you have weight on it, like mine, you'd be advised to use NO LESS than 52-4 psi.

However, offroad is not so simple either. The 'squish' factor in the same size tire on mine vs a stock lr3 will be very different because mine weighs over 7000 lbs, always, and with the rack and RTT plus full fridge and another person, and both tanks fully fueled, it's over 8000.

I am now using 22 psi BUT that's in a tire designed for it AND they are 34" tires so the sidewall available to 'squish' is taller and the tire BFG KM2 is designed to do this with zero issues. The grip and added articulation flex is incredible. The tires alone create a 2" 'lift' when inflated standard psi. The strut spacer sets the ride height at +50mm so that's 4" extra clearance from the ground to various parts on a stock vehicle! Nuts.

El Solis said:

I run those on Compo wheels. I used to run 18 psi at all four corners but the rear looked to have too much side wall deflection so now I run 25 psi in the rears when fully loaded and 18 psi up front. Here is a pic fully (over)loaded and you can see the tires look fine at 18 front 25 rear.

Click to expand...

It would be very useful if you ever have a chance to get weighed with or without the roof load? Do you have any other heavy items aside from the roof and what looks like decent steel sliders? My sliders have 100% coverage and are 100 lbs per side. The crazy Asfir rear diff guard was like 25-30 lbs on it's own !