airing down 35s?

JeepNfish20

New member

• Oct 9, 2016

• #1

I have 35x12.50R17lt bf goodrich km2 mud terrains on Mamba M4 simulated beadlocks (non functional).I was wondering what I should air down to for offroading. Regular driving I keep them at 28 and was wondering how low I can go with no issues?
Thanks

 

GraniteCrystal

New member

• Oct 9, 2016

• #2

I've heard of guys going down to 10psi on non-beadlocks but I probably wouldn't. If you look at the benefits, you get most of them buy going down to 20psi, not a lot after that till you start getting below ~12psi. I'd go down to 20psi and call it good.

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10abadilla/jk

New member

• Oct 9, 2016

• #3

I air down to 15 and haven't had an issue.

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Overland_stormtrooper

Caught the Bug

• Oct 9, 2016

• #4

i'm running 35x12.5 x20 and go down to 18 haven't had any issue yet .. also on a non beadlock like yourself ..

 

Journeyman

New member

• Oct 9, 2016

• #5

Airing down to only 20 psi your not going to see much benefit. I take my 35's down 12 on a regular basis and no issues. Even 10 sometimes, it just depends on what I'm doing. Obviously at lower pressures I try to not lean on the side walls to much.


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NV JK Steve

New member

• Oct 9, 2016

• #6

I've aired my 37's with no beadlocks to 15psi and had no problems.

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Mike_JK_Houston_711

New member

• Oct 9, 2016

• #7

NV JK Steve said:

I've aired my 37's with no beadlocks to 15psi and had no problems.

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Click to expand...

This is exactly what I do wth my 37s and non beadlocks.


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Desertman

New member

• Oct 9, 2016

• #8

On standard rubicon wheels I go to 12psi on the front and 10 psi on the rear.


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TRLJNKY

New member

• Oct 9, 2016

• #9

15psi seems to be the magic number. Thats what Ive done with 315's and stock Rubi wheels. No issues

 

scull20

New member

• Oct 9, 2016

• #10

12-15psi on my 35" mud grapplers on stock rubicon wheels. No issues here.

 

JeepNfish20

New member

• Oct 9, 2016

• #11

Great! Thanks for everyones input!

 

ob_tj

New member

• Oct 9, 2016

• #12

I know I don't have 35s but I air my 33×12.50r15s down to 8 psi. I hack yet to roll a bead.

 

USMC Wrangler

New member

• Oct 9, 2016

• #13

As the others 12-15psi on Nitto Trail Grapplers 35x12.5r17 on non-beadlock MB Razors. No issues yet.


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BigBoy

New member

• Oct 9, 2016

• #14

The narrower the wheel the safer you are at lower pressures, typically. There are no guarantees, but I've had no issues wth 10 psi on 8" wide wheels. Not sure I would go that low with say a 10" wide wheel and have the same confidence. That being said terrain can play a big part too.


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Red Knight15

Caught the Bug

• Oct 9, 2016

• #15

14psi on my 35x12.50-17 Toyo Open Country on factory Rubicon wheels

 

F

Fires JK

New member

• Oct 10, 2016

• #16

I usually go down to 13 and no problem

 

bthomas

Member

• Oct 10, 2016

• #17

I've gone as low as 10psi on a 9" wheel with KM2's and MTR's without a problem yet... But more often I'm around 12 or so.


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JoeB-JKURX

New member

• Oct 10, 2016

• #18

I usually do 12 psi with 35x12.50 KM2s on 17x9 wheels (on the rocks) - no problems. A friend with 315R17 Duratracs running 10 psi had a sidewall pinch flat (brand new tire) on the same rocks.

 

Edwrds

Caught the Bug

• Oct 10, 2016

• #19

I have the same tires I run them at 28psi for daily driving. When off-roading I run the rear at 10psi front around 12psi with no problems so far. I have even went down to 8psi on all four tires without any issues. None bead locks


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dunstan74

New member

• Oct 12, 2016

• #20

I run my trail grapplers at 12-14 psi on 9" wide wheels never had a problem

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