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Old 08-19-2013, 05:04 PM   #1
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What do i air down to?

Hello. I am going on the beach. I have wrangler MT 285/70/17. What should I air down to? Thank you

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Old 08-19-2013, 05:46 PM   #2
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15-20 w/out beadlocks to play safe.

15 - if you have some sort of onboard air to fill after a run
20 - if you have to drive a few miles to pump air at a gas station after a run.

i also do a combination of both. 20 in the fronts/15's at the rear. I don't want to puncture my front tires again so i try to keep sidewall exposure to a minimum up front.

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Old 08-19-2013, 10:02 PM   #3
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20 seems a little steep but then again I dont go on the sand.
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Old 08-19-2013, 11:34 PM   #4
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There are a few different factors that affect your off road tire pressure, type of tire, rim size, side wall ply, weight of the jeep. What works for one person might not for you. Heres some good reading material that will help you measure to find the right psi for you. IMO if it was me Id start at 12psi and go from there. I run 37 12.50 15R Swamper M16's and with out bead locks I run 8psi.
4x4 Tire Pressure, Off Road Airing Down, Off Road Tire Pressure, Airing Down Videos, Airing Down Articles, On-board Air Systems
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Old 08-20-2013, 04:29 PM   #5
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I hit the beach a dozen times spring to fall and have had not issues at 12 psi on AEV Pintler rims running 255/75/17 BFG stock Rubicon tires. Good luck and have fun!
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Old 08-20-2013, 04:34 PM   #6
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Originally Posted by Gunz n tractorz View Post
20 seems a little steep but then again I dont go on the sand.
20 psi isnt even considered airing down.

If it were me, I would try 15 psi first...if that doesn't look like its giving you what you need, drop it a few more pounds.
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Old 08-20-2013, 05:04 PM   #7
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Quote:
Originally Posted by Cons_Table

20 psi isnt even considered airing down.

If it were me, I would try 15 psi first...if that doesn't look like its giving you what you need, drop it a few more pounds.
I run 20psi everyday and its my dd
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Old 08-20-2013, 05:09 PM   #8
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I run 20psi everyday and its my dd
Hows the wear on your tires at that pressure

I personally think that is too low on the 32s that you mention in your profile. When I ran my 32" BFGs...20 would not have been enough for a DD. I ran closer to the 28-30psi.

I am running 35s and still run around 25psi. 20psi on the road is too low, but offroad its not enough.
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Old 08-22-2013, 09:45 PM   #9
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Quote:
Originally Posted by Cons_Table

Hows the wear on your tires at that pressure

I personally think that is too low on the 32s that you mention in your profile. When I ran my 32" BFGs...20 would not have been enough for a DD. I ran closer to the 28-30psi.

I am running 35s and still run around 25psi. 20psi on the road is too low, but offroad its not enough.
That's what I did run for about a year but now I'm running 32 in front and 30 in the rear. Tire wear was fine but I don't drive all that much either.

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