lowest tire pressure?

[trailraider]

what's the lowest air pressure anyone has run on their tires WITHOUT bead locks and no issues?

I ask as I don't air down often and when I do I only drop to twenty pounds. I worry about the side wall burning up and if too low the tire coming off on the rim. I was on the TOYO website and could only find specs for as low as 22 lbs.

I have the 315/65r18's M/T's. any one run similar they can say they have run a lot lower with no issues?

thanks

 

[Davidraider]

I run about 15 psi on my BFG's

 

[WJCO]

I have 32s but run 20. I know a couple people that run 15 with no issues. The way it has been explained to me is that it really takes a lot of heat (high speeds) with low air pressure to do any sidewall damage.

 

[Spmitchell86]

I have gone down to 12 on the beach at cape cod... 32" BFG

 

[jeff_in_rc]

With my General Grabber Red Labels in 35 x 12.50 x 15 I run 8 PSI with no issues.

 

[Texas Nick]

On my stock rubicon tires, i did 20 all day. I played with 15psi more than a couple times but i felt like my rig was to low when on rocks (stock)
Other than popping the bead twice at 15 was when i was in mud and sand. Which was my fault for turning to quick. Other than that, no problem. Now that i jumped to 35s im gonna start at 15 and go from there

Edit: im still on the stock Rubi wheels

 

[swampdog]

I run 11 psi every time I'm on the rocks or slow trails with 35" K02s without issue.

 

[Linebacker]

12psi on the trail and 32 on the road. I'm running stock 255 Trail Graps. Never had a problem. Not yet anyway.

 

[ob_tj]

I have 33" BFG ATs on the road I run them at 30 psi and on trails go down to 15 and in snow some times 10.

 

[robx251]

I have 33" BFG ATs on the road I run them at 30 psi and on trails go down to 15 and in snow some times 10.

While out my buddy runs 6-8 some times a low as 3 while wheeling on his tj with 33x10.5x15

 

[Webe]

37's I run 3 psi on our snow runs and 5 - 8 psi off roading otherwise. 25 - 30 psi on highway depending on tire wear.:twocents:

 

[srosario]

i chalk test my tires and im at 38psi on my 37" cooper

 

[Greg__Berger]

i chalk test my tires and im at 38psi on my 37" cooper

38?! That was rock hard on my 37" coopers. I'm at 27 on the street. Run about 12 or so on the trail since I'm not on beadlocks.

 

[OverlanderJK]

i chalk test my tires and im at 38psi on my 37" cooper

Do you have dentures?

 

[DEADRABBIT31]

I've run 14psi on 315/70/17 DuraTracs mounted to AEV non beedlock Pintlers

 

[trailraider]

While out my buddy runs 6-8 some times a low as 3 while wheeling on his tj with 33x10.5x15

this low a pressure and they don't come off the rim?

that's what im trying to find out , as I don't want to air down and not have enough pressure to still hold it to the wheel.

3 lbs seems really low for that.

 

[robx251]

this low a pressure and they don't come off the rim?

that's what im trying to find out , as I don't want to air down and not have enough pressure to still hold it to the wheel.

3 lbs seems really low for that.

To be fair the 3 lb ride was a winter run. I think he has only popped a bead off once that I can think of running 6-8

 

[trailraider]

To be fair the 3 lb ride was a winter run. I think he has only popped a bead off once that I can think of running 6-8

from all the responses I may try to drop to about 10 my next trail ride and see how it handles. although we don't really have much that we need to air down here. not much rock crawling.

 

[swampdog]

Dude, you need to take all of this with a grain of salt. There are so many variables here in people's responses the play a role in ability to hold a bead at low pressure...sidewall height, rim width vs tire width, wheeling conditions, etc. To just drop air pressure arbitrarily based on forum responses with tons of variables is just silly.

Drop the air pressure to 15 ( a good starting point for most all combinations) and wheel it. Then, continue dropping a pound as the day goes on until you find either a) the sweet spot for your setup, or b) the point where you lose a bead. This is the only way as YOUR rig is not the same as everyone else that is responding.

 

[WJCO]

Dude, you need to take all of this with a grain of salt. There are so many variables here in people's responses the play a role in ability to hold a bead at low pressure...sidewall height, rim width vs tire width, wheeling conditions, etc. To just drop air pressure arbitrarily based on forum responses with tons of variables is just silly.

Drop the air pressure to 15 ( a good starting point for most all combinations) and wheel it. Then, continue dropping a pound as the day goes on until you find either a) the sweet spot for your setup, or b) the point where you lose a bead. This is the only way as YOUR rig is not the same as everyone else that is responding.

Wise words.