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Old 01-15-2014, 11:41 AM
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Off Road Implications with 275/55/20 tires

Can anyone explain what the off Road implications are if you go to a 275/55/20 AT tire. I know most are saying they don't rub in normal driving, but what happens on the beach or moderate trail if there is some bounce (assuming no lift) - thanks in advance for any experience u want to share.
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Old 01-15-2014, 01:25 PM
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Re: Off Road Implications with 275/55/20 tires

WK2? What suspension? What's your reasoning for wanting to go to a taller tire?

The 275/55/20 is almost 32" tall and about 10.75" wide (depending on manufacture) and will fill up the wheel wells. I just installed 275/65/18's DuarTracs on my '13 GC Hawk w/QL yesterday. These are just a little bit over 32" tall and pretty much the same width. Haven't had a chance to flex it yet but initial check is no rub in "Auto" or "Park" modes, but the rear inside tire edge is within 1/2" of the inner fender liner.

Based on that, I'm going to say that if you start flexing your suspension your going to "kiss" some body parts. You might consider something around the 255/55/20 range (~31" tall).

Just my 2 cents...

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Old 01-15-2014, 07:58 PM
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Re: Off Road Implications with 275/55/20 tires

Thanks for the info XJ97SPORT

I'm purchasing a 2014 Limited NO Lift with tow package. My main goal is to get a larger tire that will give me more sidewall with the 20" and give me some more ability off road.
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Old 01-16-2014, 03:33 AM
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Re: Off Road Implications with 275/55/20 tires

Understood... would be nice fix a 15" rim and run a 33" MT tire that has a couple more inches of sidewall height.

With the 18" and 20" rim/tire combos we just won't be able to "air-em-down" as much.

Check out this tire calculator: Tire Size Calculator

Plugin your 275/55/20 and the 275/65/18 and the 18 has only an inch more in sidewall height at 7.04 inches. Hey, it's only an "inch" but I'll take it.
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Old 01-16-2014, 09:55 AM
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Re: Off Road Implications with 275/55/20 tires

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Originally Posted by XJ97SPORT View Post
Understood... would be nice fix a 15" rim and run a 33" MT tire that has a couple more inches of sidewall height.

With the 18" and 20" rim/tire combos we just won't be able to "air-em-down" as much.

Check out this tire calculator: Tire Size Calculator

Plugin your 275/55/20 and the 275/65/18 and the 18 has only an inch more in sidewall height at 7.04 inches. Hey, it's only an "inch" but I'll take it.
Thanks much that tire calculator is great. i'm thinking maybe 265/65/18. Afraid to go to the 275 with bouncing, etc off road and no lift.
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Old 01-21-2014, 09:07 PM
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Re: Off Road Implications with 275/55/20 tires

No problem with mine, I do a ton of beach driving as well as trails and have never rubbed out.
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Old 01-22-2014, 09:14 AM
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Re: Off Road Implications with 275/55/20 tires

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No problem with mine, I do a ton of beach driving as well as trails and have never rubbed out.
Thanks for that info. Did you have to install the leveling kit to fit the 275 Zeons?
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Old 01-22-2014, 09:27 AM
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I installed the levelling kit first, then got tires. I also run 1 1/4" spacers so without the level I may be oK. I think there are a couple guys here that have 275/55s w/o a level.
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Old 01-22-2014, 10:28 AM
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Re: Off Road Implications with 275/55/20 tires

Thanks CC, one last question, are you happy with the Zeons, how are they in snow? Jeep looks great BTW!
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Old 01-22-2014, 10:47 AM
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Thanks! I am very happy with the Zeons, they along with snow mode handle the snow and slick packed snow quite well.
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Old 02-06-2014, 10:52 PM
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I'll second the Zeons being good in snow (275/55R20) but as with all non-dedicated snow tires aren't so hot on shear ice. Mine are wearing well too.
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Old 02-07-2014, 08:15 AM
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Re: Off Road Implications with 275/55/20 tires

Thanks BManz, so I guess you're still liking your 275 Zeons. I'm stlll deciding on those or the Nittos. No one has really answered this, but when I had my 2011 GC I had the 18" so I would just fly over speed bumps and not really care, with the 20" Forteras on my 2014 GC I feel I can't do that, thus the idea of getting a 275 with more sidewall, but since it's a tight fit I'm wondered if you have to be careful as well since it could rub. So trying to get to the bottom of how that size would be in off road situations where their is flexing going on, just using the speed bump as an example. Thanks for any additional input.
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