My 2 cents. (and you get what you pay for) :brows:
A 275/65/18 has very little side wall compared to say a 35-12.5-15 which I have aired down to around 12 lbs before noticing any real possibility of coming "un-beaded" (if that's a word).
I would think/suggest staying around 20 lbs and no...
2011 - 2015
http://wayalife.com/showthread.php?139-Greetings-from-SW-Florida
Here's what my JK looked like back in 2011 when I made my "Give us a wave" post.
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I un-zip both the front windows a little on the back side (see pic) and it really cuts down on the high speed "lifting" of the uppers. Even in the rain, no more water comes in while they are cracked open.
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