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Unread 06-19-2009, 11:41 AM   #1
ElPaso2007
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What PSI Do You Use For Highway With BFG KM2s?

So many have the KM2's I'm sure some of your have experimented with tire pressure for freeway and street use. I've been keeping mine at 32 psi for normal use and airing down to 15 psi for the trail. Mine are 285/70/R17s on Eagle alloy wheels.

Does anyone use a lower pressure for normal use?

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Unread 06-19-2009, 11:44 AM   #2
SoCalJK
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I'm also using 32psi. When they were first installed they were set at 40 but that was far too hard. I plan on remaining at 32. Mine are stock 255/75/17.
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Unread 06-19-2009, 11:44 AM   #3
N2rock
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trail- 10-15psi (depending on the type of wheeling I'll be doing)
around town: 29psi (allows the tires to absorb most of the bumps in the road)
Highway (if I'm traveling): 35psi
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Unread 06-19-2009, 12:30 PM   #4
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i was running my 35s at 40psi on the highway, but have since gone to 35 and noticed a better ride for sure. i see some running at 29 and might try it. 325/65/18
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Unread 06-19-2009, 12:36 PM   #5
rjt36
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I typically kept my BFG MTs around 30 psi. Ride was good and tread wear was even.
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Unread 06-19-2009, 12:45 PM   #6
rballman
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about 30 psi for me
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Unread 06-19-2009, 01:55 PM   #7
ElPaso2007
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Thanks, guys. I think I'll try 30 for running around and go back to 32 for highway trips. I was pretty sure I could go a little lower, and I'm sure it will help absorb the bumps a little.
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Unread 06-19-2009, 01:57 PM   #8
ElPaso2007
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Quote:
Originally Posted by N2rock View Post
trail- 10-15psi (depending on the type of wheeling I'll be doing)
around town: 29psi (allows the tires to absorb most of the bumps in the road)
Highway (if I'm traveling): 35psi
Profile says you are running 35" tires, though. I don't think I could take the 33 inch tires down to 10 psi for the trail, do you? 15 seems to be good. Much as I would love to go down to 10, I'm afraid I would blow a bead.
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Unread 06-19-2009, 02:02 PM   #9
N2rock
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Quote:
Originally Posted by ElPaso2007 View Post
Profile says you are running 35" tires, though. I don't think I could take the 33 inch tires down to 10 psi for the trail, do you? 15 seems to be good. Much as I would love to go down to 10, I'm afraid I would blow a bead.
I don't know. I would think that you could. Hell I was nervous going below 15psi. But finally went for it when we went to K-rocks, and discovered that it held fine, and was incredible on the rocks.
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If you made a snuggy out of a Shamwow, ....would you have to get up off the couch to pee?
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At this point if Obama tried to move a little to the right, he would trip over Stalin's corpse.
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Unread 06-19-2009, 05:06 PM   #10
ElPaso2007
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I'm sure it was. I did have them down to 12 psi once by accident and that was a smooth ride.
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Unread 06-20-2009, 12:52 AM   #11
rufrdr
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I run mine at 38 psi cold. The fuel economy is much better (+2-3 mpg on the highway) compared to when I ran them at 34. On the trail I do them at 18psi. I don't want to loose the bead by running them lower.
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Unread 06-20-2009, 01:23 AM   #12
yoda13
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I don't want to start a new thread for my own tire pressure question...how about 15 psi for trail use for some 33x12.5x15s...I don't want to lose a tire because i pop a bead out there?

I run 32 psi for normal use...

oh yeah, mine are ATs, not MTs...
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Unread 06-20-2009, 01:27 AM   #13
SHAKEnBLAKE
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^^also depends on the wheels you're running

In your case with 8 inch wide wheels that should be fine. The narrower wheels hold the bead better. I have 15x 10's and I choose not to go down quite as far, although I've accidentally wheeled at 15 and didnt have any problems.
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Unread 06-20-2009, 07:17 AM   #14
N2rock
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Quote:
Originally Posted by yoda13 View Post
I don't want to start a new thread for my own tire pressure question...how about 15 psi for trail use for some 33x12.5x15s...I don't want to lose a tire because i pop a bead out there?

I run 32 psi for normal use...

oh yeah, mine are ATs, not MTs...
I was running 15psi with the original 32" Wrangler AT's. So you should be fine. 15psi is not all that low.
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His: '07 Unlimited X, Jeep Green, Hardtop, auto, 5.13, 2.5" RC lift and too many mods to list

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Quote:
Originally Posted by tlgraham View Post
If you made a snuggy out of a Shamwow, ....would you have to get up off the couch to pee?
Quote:
Originally Posted by Deepskyy View Post
At this point if Obama tried to move a little to the right, he would trip over Stalin's corpse.
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Unread 06-20-2009, 11:32 AM   #15
yoda13
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OK, good....I will take it down to 20 or so, and if that is not enough, then I will go to 15...I didn't air down when I went to superlift...and I am pretty sure it caused me some traction issues...
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RIP Mrs. yoda13... My life is better for having had you in it and you made me a better man...I can't wait to see you again...I love you always and forever, and for all eternity


If you want to help the sport of off-roading, and protect your right to do so, please visit the Envirobeat
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