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What do you air down stock bfgoodrich mudterrains to?

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Old Feb 6, 2015 | 07:35 AM
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Default What do you air down stock bfgoodrich mudterrains to?

Just curious for the stock Ruby wheels and tires what are you guys airing down to? Do you have a set number like take 12 or 15 psi out?

Thanks!
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Old Feb 6, 2015 | 07:50 AM
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Originally Posted by Machoo
Just curious for the stock Ruby wheels and tires what are you guys airing down to? Do you have a set number like take 12 or 15 psi out?

Thanks!
I don't have them, but would think that would be fine for rock crawling. However, would not recommend going that low for overlanding, where higher speeds are involved. 20 PSI. If you encounter a particularly technical stretch, air down to 12-15, then air back up to 20 as soon as cleared. This will help keep your sidewalls from becoming damaged.
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Old Feb 6, 2015 | 08:36 AM
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I run mine at 15 psi when off road, just for comfort. I wouldn't go below 10 psi with stock rims.
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Old Feb 6, 2015 | 10:52 AM
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Originally Posted by Mark Doiron
I don't have them, but would think that would be fine for rock crawling. However, would not recommend going that low for overlanding, where higher speeds are involved. 20 PSI. If you encounter a particularly technical stretch, air down to 12-15, then air back up to 20 as soon as cleared. This will help keep your sidewalls from becoming damaged.
Thank you Mark,

I pay extra attention to your advice and experience. I greatly appreciate it. Sounds like I will likely stick around 20 for most of my off road work as you suggested. For some of the more interesting stuff down to 15. I was most worried about the tire coming off the bead and what that threshold may be. Sounds safe to run the numbers above.
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Old Feb 6, 2015 | 10:53 AM
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Originally Posted by amok
I run mine at 15 psi when off road, just for comfort. I wouldn't go below 10 psi with stock rims.
Awesome! This is exactly what I was thinking. Good to know you run around 15 and it's ok. I will likely keep it between that and 20.

Appreciate it you guys!
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Old Feb 6, 2015 | 11:00 AM
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I used to run mine at 15 for trails, 10 for the beach.
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Old Feb 6, 2015 | 02:27 PM
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Originally Posted by Rob 12B1P
I used to run mine at 15 for trails, 10 for the beach.
Wow Rob. How did they do on the sand? I've heard they are pretty poor.
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Old Feb 6, 2015 | 04:37 PM
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Originally Posted by Machoo
Wow Rob. How did they do on the sand? I've heard they are pretty poor.
They are pretty soft tires so they do ok. They look like they are flat at 10lbs. I went all thru the dunes at Oceano but was careful not to get down into any real big bowls as I was worried the JK wouldnt be able to power out of them. Its tough with a Rubi as 4hi has no power and 4lo is too low.
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Old Feb 6, 2015 | 05:07 PM
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I keep mine at 20psi off road. No sand in Colorado, but it does just fine on the mountain passes. 4-hi does suck, that is why I wheel in 4-lo. I find that 4-lo has lots of power if you pick the right gear. I guess that doesn't apply to an auto trans thou. If I get on-board air someday I might risk a lower psi...
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Old Feb 6, 2015 | 05:26 PM
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Originally Posted by Rob 12B1P
They are pretty soft tires so they do ok. They look like they are flat at 10lbs. I went all thru the dunes at Oceano but was careful not to get down into any real big bowls as I was worried the JK wouldnt be able to power out of them. Its tough with a Rubi as 4hi has no power and 4lo is too low.
This scares me. I have not really pushed the limit of the JK in the sand but would be extremely worried that it doesn't have enough power to get up a large dune or bowls.
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