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Unread 03-24-2009, 09:02 PM   #1
chonger
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2"BB 245/75/r16's or 265/70/r16's help...

Hey I just finished a nice 2"BB with RE monotubes. I was wondering what are the reasons to choose either of the above tires sizes. I see many people with the same lift height use both sizes of tires. What are the real differences I can expect from either choice?

Thanks,
Chris

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Unread 03-24-2009, 09:28 PM   #2
GraKee99
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One is wider.
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Unread 03-24-2009, 09:43 PM   #3
chonger
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Well i was looking for advantages on and off-road as well as fitament issues with a 2"bb...but thanks anyhow...
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Unread 03-24-2009, 09:49 PM   #4
rustynail
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Wider is better on and off the road up to at least 10 1/2" which is about 265. I would go with either 265 70's or 265 75's if you like off roading.
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5.9 ORVIS 33x12.5 MTR-Kevlar, 7" fr adj IR LA's, 7" rr adj RE SF SA's, adj JKS TB's, RE SB disc, RE Springs, JKS ACOS, 13" RS9000XL's, OME SS, NP231, Durango box, IR Sliders, IR Skid, 3" Flowmaster 70, K&N, Superwinch EPi9.0, Optima Yel, 2 air comp, Alpine, Garmin, Sunroof
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Unread 03-24-2009, 11:01 PM   #5
GraKee99
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A 265/75/16 won't fit a BB without quite a bit of trimming.
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Unread 03-25-2009, 12:05 AM   #6
SocalWJ
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Quote:
Originally Posted by ZJ-Orvis View Post
Wider is better on and off the road
Here is an article that would disagree with the above statement. It's really all going to come down to what conditions you are going to be driving in. Some are going to say wider is better and other are going to say tall and skinny is better.


http://www.expeditionswest.com/resea...tion_rev1.html
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Unread 03-25-2009, 12:33 AM   #7
rustynail
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That is a sweet article. I don't know how I was quoted with the rest of the sentence removed but that's pretty tricky. Anyhow the 70 series will handle on the street a lot better. My 2wd suburban has 235 75 15's stock and I put 265 70 15's on there (same height) and corners awesome now, no more white knuckles on the winding mountain roads.
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5.9 ORVIS 33x12.5 MTR-Kevlar, 7" fr adj IR LA's, 7" rr adj RE SF SA's, adj JKS TB's, RE SB disc, RE Springs, JKS ACOS, 13" RS9000XL's, OME SS, NP231, Durango box, IR Sliders, IR Skid, 3" Flowmaster 70, K&N, Superwinch EPi9.0, Optima Yel, 2 air comp, Alpine, Garmin, Sunroof
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Unread 03-25-2009, 02:50 AM   #8
EarpWJ
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How much does it really make a difference? A lot of tires don't come in 265/70/16 (ie KM2 and GY duratrac) I was thinking of getting the duratrac 245/75/16, but its still a daily driver and cant have the thing handle like crap...
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Unread 03-25-2009, 04:05 AM   #9
kreso
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I have on my 2" 235/85-16 and no rubbing at all.
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Unread 03-25-2009, 05:33 AM   #10
586ZJ
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I had 265/75 16 Cooper Discoverer STT's on my stock height ZJ, yes they rubbed before lock and I never really wheeled them. But I did a 3.5 IRO and they barely rub now. With a BB I think it would be fine and look damn good too.
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Unread 03-25-2009, 10:34 AM   #11
JustSomeDude
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You're basically looking at 9.5" wide by 30.5" diameter tires, versus 10.5" wide by 31" diameter tires. The diameter obviously affects whether or not you need to trim. I just installed the 245/75s on my 2" BB with RE mototubes, and have no rubbing. I would probably have some minor rubbing with the 31s.

However, the bigger issue is the width of the tire with respect to your intended use. The main difference between 9.5" wide and 10.5" wide tires will be snow performance. Due to the increased contact area between the tire and the road on 10.5" tires, there will be less surface pressure placed on the road by the tire. As such, wider tires tend to "float" on snow - resulting in "spinning" - and obviously reduced traction/poor winter performance.

So - what is your goal?

My WJ is my daily driver. I like being able to travel in snow, especially into the mountains for snowboard trips. When people are hung up on the side of the road and spinning around in a snowstorm, it's fun being able to pass them by with stellar traction. Will my off-road performance be slightly reduced? Yes - but then again with only a 2" BB, it's not like I'm looking for aggro-articulation, and airing down my tires to 14 PSI. My off-roading is limited to moderate trails, and weekend warrior stuff. The 9.5" wide tires allow me to cover all the terrain that I NEED, while giving me optimum winter performance.

If you are looking to try a little more off-roading, the 10.5" wide tire may be right for you -- but then, the 2" BB will not satisfy your wheeling itch for very long. If you just want a good all-around vehicle, that rocks in all weather/road conditions... stick to the 9.5s.
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Unread 06-21-2009, 10:28 PM   #12
rw1978
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JustSomeDude-

Can I see a pic of your ride? I'm looking at doing something very similar on my '99 Limited.

Thanks
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