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33 tire and air pressure

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Old Oct 22, 2007 | 01:02 PM
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Default 33 tire and air pressure

? I run the beach alot, soft sand. I usally air down to 20 psi on a 31 x 8 tire that normal running psi is 35 to 40 max. Now I have 33 x 12 1/2 that normal psi is 50. What is a good psi for the beach with out worrying about throwing the tire from the rim ?
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Old Oct 22, 2007 | 01:04 PM
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wow.....50 psi normal.....i'm running 30 psi normal....for highway road ....

not sure about sand though
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Old Oct 22, 2007 | 02:12 PM
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I'm also running 30-32 psi for my 33's on the road and offroad I'm running 12-14 and I've never even come close to breaking a bead.
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Old Oct 22, 2007 | 02:41 PM
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Originally Posted by Midblues
? I run the beach alot, soft sand. I usally air down to 20 psi on a 31 x 8 tire that normal running psi is 35 to 40 max. Now I have 33 x 12 1/2 that normal psi is 50. What is a good psi for the beach with out worrying about throwing the tire from the rim ?
Seriously, if you want your tires to wear nicely and provide a comfortable ride, you really should be running your 33's at about 30psi on pavement. And, assuming you are running factory wheels or ones that are only 8" wide, you should be able to run them on the beach at 10-15psi without any problems.
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Old Oct 22, 2007 | 02:45 PM
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Default 12

personaly i run 30psi on street and 12psi on trail
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Old Oct 22, 2007 | 02:46 PM
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Originally Posted by Midblues
? I run the beach alot, soft sand. I usally air down to 20 psi on a 31 x 8 tire that normal running psi is 35 to 40 max. Now I have 33 x 12 1/2 that normal psi is 50. What is a good psi for the beach with out worrying about throwing the tire from the rim ?
50???? OH MY... I run 27 psi in my 33s (with a heavily loaded 4 door). Lighter vehicles, like 2 doors or stock 4 doors, can probably run less.

I think you could air down to at least 14 psi w/o any problem. Probably less - depends on your vehicle weight.

js.
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Old Oct 22, 2007 | 05:05 PM
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Thanks I lowered it down to 35 try that for a day or 2 then go to 30 psi.
I thought so first time with 33 biggest I run was 31 tires.
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Old Oct 22, 2007 | 05:09 PM
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Make sure you have a good dental plan with that 50psi.
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Old Oct 22, 2007 | 08:43 PM
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Im running 285/75/16 on the stock 16 x 7 rim the tire should really be on a 7.5 rim so I guess I have a greater risk of the tire coming off the rim. What PSI can I go down to on the beach? 15psi?
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Old Oct 23, 2007 | 02:00 AM
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I am running 35psi on the road and 10-15 off road.


50 psi wow never ever not when I pull my Bass boat too.
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