General question I didn't find an answer to while searching the forums. I have 2012 JK with Nitto G2's LT275 65 R18's. I'm planning on Jeeping the mountain trails of SW Colorado and Moab UT. How many PSI should I remove from the tires (if any) before I tackle the trails? They are currently at recommended level 34 or 35 psi right now.
How much to air down?
- Thread starter JeepJam
- Start date
07JKSahara
New member
Search will yield some good results on the forum here, but I'd run between 10 and 12. As low as 8 is fine, just more likely to lose a bead.
cozdude
Guy with a Red 2-Door
This ^^^^^^^
kaptkrappy
New member
My 2 cents. (and you get what you pay for) :brows:
A 275/65/18 has very little side wall compared to say a 35-12.5-15 which I have aired down to around 12 lbs before noticing any real possibility of coming "un-beaded" (if that's a word).
I would think/suggest staying around 20 lbs and no lower with that size tire. It just doesn't have the flexibility of a tire with more side wall.
I could be wrong and it work the other way around, but I don't think so.
.
A 275/65/18 has very little side wall compared to say a 35-12.5-15 which I have aired down to around 12 lbs before noticing any real possibility of coming "un-beaded" (if that's a word).
I would think/suggest staying around 20 lbs and no lower with that size tire. It just doesn't have the flexibility of a tire with more side wall.
I could be wrong and it work the other way around, but I don't think so.
.
Spudcannons
New member
I agree with this^ you could damage your wheel too if air down too far.
dyn0mitemat
Member
I'd say wheel type and width would have a significant impact on it as well.
I had a set of 35/12.50/15 MTZ's on 15x8 Classic8's and I could run 12f-10r and never have a problem
The 37's on slabs I have now I run 8 to 10
I had a set of 35/12.50/15 MTZ's on 15x8 Classic8's and I could run 12f-10r and never have a problem
The 37's on slabs I have now I run 8 to 10
Thanks to everyone for the input. This is a stock Altitude edition wrangler. The only thing different is the tires. I bought some Nitto G2's. A little bigger than the stock Dualers that were on there.
We will be going through many switch backs as well, so I was a little concerned with going too low on the PSI. Could it be possible to loose the bead on the tire while tight turning?