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tire pressure on 18"?

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Old Apr 7, 2006, 09:35 AM
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tire pressure on 18"?

what tire pressure should i run on 18"s with 255/35/18 tires?

thansk
Old Apr 7, 2006, 09:36 AM
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I run 32/29
Old Apr 7, 2006, 10:20 AM
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35-32
Old Apr 7, 2006, 11:24 AM
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i run 33 all around should be ok right?
Old Apr 7, 2006, 11:30 AM
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wow, I want to keep my rims alive, I don't go below 40psi. I already bent one set of rims when I had below 35, I'm not going to do this again, it's not worth it. On the other hand I live in NY so there is a lot of patholes.
Old Apr 7, 2006, 01:31 PM
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Just an FYI...


Pressure = Pressure regardless of size of rim.

32 psi is still 32 psi on a 16" - 17" or 18" rim.

If you want to protect your rims, then yes, raise your tires pressure.
Old Apr 9, 2006, 04:29 PM
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33/31 on summers : 32/29 on snows: 36/32 on track...
Rule of thumb - softer is safer (within reason).
if you drive it hard, make sure you don't roll the tire to the endpoint of tread, and if you have it upto 40, expect excessive wear, poor performance.

Despite what some may say, there is typically a corellation b/w size and pressure. As you go up in rim size and decrease the sidewall of the tire (if maintaining radius), you will increase tire pressure.
Old Apr 10, 2006, 03:02 AM
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Originally Posted by 4cdndctn
Despite what some may say, there is typically a corellation b/w size and pressure. As you go up in rim size and decrease the sidewall of the tire (if maintaining radius), you will increase tire pressure.

I'm not quite sure I understand this statement.

If you decrease the sidewall of the tire you reduce flexing of the sidewall. This is true...

But, as I stated before, regardless of rim size. You don't have to raise/lower pressure just because you got a bigger rim.... 32 psi is still 32 psi.... It's just a reading/measurement...
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