Goin 37's advice on which tires - JKowners.com : Jeep Wrangler JK Forum
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post #1 of 48 Old 06-21-2010, 05:50 PM Thread Starter
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Goin 37's advice on which tires

Need your help guys (and gals). I am going 37's. I do 80% on road so don't want to go too aggressive. Too many choices between MTR's, KM2's, Toyos, Nitto, Procomps.......AHHHHHHH. I had decided on the KM2's but i hear the KM2's only measure about 35.5 mounted. Thats kind of a let down. Anyway. Please share your experiences with me so that I can make an educated decesion. Thanks.
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post #2 of 48 Old 06-21-2010, 06:25 PM
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MRTs....i pitty the fool, no, i mean MTRs.

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post #3 of 48 Old 06-21-2010, 06:30 PM
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those bfg km2s have a tendency to wear fast so for a daily driver they might not last that long.
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post #4 of 48 Old 06-21-2010, 06:42 PM
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Quote:
Originally Posted by Mt.GoatJK View Post
those bfg km2s have a tendency to wear fast so for a daily driver they might not last that long.
Nice research before posting.

KM2s last just fine on the road. Just keep them rotated. They run small though, so you'll pay for 37s and get 35s.

My vote is for the MTRs. Get a load range C tire too, it makes a difference.

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post #5 of 48 Old 06-21-2010, 06:52 PM Thread Starter
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Thanks. Anybody running procomps or nittos?
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post #6 of 48 Old 06-21-2010, 06:53 PM
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Where's the poll? FWIW, if you're thinking about getting a set of the KM2's in 37, then just get a 35" MT/R Kevlar!

If it makes it any clearer for you that I like my MT/R's, I'm runnin' the 35's now and thinking of selling them to get the same tire in 38's.


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post #7 of 48 Old 06-21-2010, 07:04 PM
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MTR's
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post #8 of 48 Old 06-21-2010, 07:11 PM Thread Starter
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Most people seem to be running 12.5 widths. Any reason not to run 13.5's? What problems can you run into and what additional mods would be necessary. Also, any real gains by doing so.
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post #9 of 48 Old 06-21-2010, 07:13 PM
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I have 37" Nitto Mud Grapplers on my DD. They are an E load range tire, and are incredibly stiff, even down at 10 lbs, which is where I run them on the trails. I've gotten used to the ride on the street, but have been on some pretty rough rock crawls with them, and they don't like to flex - at all. I think they measured out to 36.5" @ 28 psi.

They were free, so I can't complain too much, but if I was buying, I would go with the MTR's.

With the stock axles, you will have to run spacers with a 13.5" tire. Not too big of an issue, just one to be aware of.

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post #10 of 48 Old 06-21-2010, 07:16 PM
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Quote:
Originally Posted by CoachMitch View Post
Thanks. Anybody running procomps or nittos?
I have the Procomp X-MTs. IMO, I think they wore too fast. I do a lot of highway driving though. I'm replacing them with the MTRs as soon as I can.

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post #11 of 48 Old 06-21-2010, 07:42 PM Thread Starter
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Anybody ever run Interco's. They have a new tire SS-M16 that comes in a 37x13.5. Just curious?
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post #12 of 48 Old 06-21-2010, 07:45 PM
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I have a buddy that has been running them for about a year. I will ask him tomorrow and check the wear on them.

They look good, no idea how they perform - he is too chicken shit to take his mall crawler offroad (Jason - if you ever read this )
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post #13 of 48 Old 06-21-2010, 07:52 PM
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What about the Mickey MTZ's? I've read a lot about their tread life being solid for a mud tire. They also appear to do well off road as well.
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post #14 of 48 Old 06-21-2010, 08:33 PM
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KM2 is a better tire than the MTR. I have run both now and aside from the MTR being true to size, the KM2 wins in all/most other respects. Street manners between the two are similar, but that is where it ends... KM2s get the nod in the dirt.
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post #15 of 48 Old 06-22-2010, 05:02 AM
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Quote:
Originally Posted by abendx View Post
KM2 is a better tire than the MTR. I have run both now and aside from the MTR being true to size, the KM2 wins in all/most other respects. Street manners between the two are similar, but that is where it ends... KM2s get the nod in the dirt.
Not too shabby on the rocks either.

I'm running KM2's and considering 37's soon. Pitbulls are on the list as well as the new Nitto Trail Grappler but they aren't around yet. Probably just gonna stick with KM2's.
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post #16 of 48 Old 06-22-2010, 06:30 AM
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Im running pro-comp now and havnt had any issues. They have worked great. But i just ordered 37" Rockers and will have them on next month. Got to try them Pitbulls, i have herd a lot of good things but will see...
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post #17 of 48 Old 06-22-2010, 07:10 AM
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Quote:
Originally Posted by abendx View Post
KM2 is a better tire than the MTR. I have run both now and aside from the MTR being true to size, the KM2 wins in all/most other respects. Street manners between the two are similar, but that is where it ends... KM2s get the nod in the dirt.
I love my KM2s they have a about 30k on them and have been abused and they are still about half life

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post #18 of 48 Old 06-22-2010, 07:41 AM Thread Starter
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Thanks for all the info. I was leaning towards the KM2 but a couple of guys said they are really small compared to other 37's. Havent heard anything bad about them other than that.
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post #19 of 48 Old 06-22-2010, 09:23 AM
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post #20 of 48 Old 06-22-2010, 10:13 AM
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Quote:
Originally Posted by CoachMitch View Post
Thanks for all the info. I was leaning towards the KM2 but a couple of guys said they are really small compared to other 37's. Havent heard anything bad about them other than that.
If you can find true measurements (search, there might be a thread or two), you will see the KM2 is not alone in the manufacture's generous measurement numbers.

The MTR, which seems to be the darling tire around here and which is very close to the manufacture measurement, is a decent tire... but the sidewall is WAY too stiff. I got WAY more flex out of a KM2 at 15# than I get with an MTR at 5#. I guess it's fine if you run beadlocks and can go down to two to three pounds in your tires, but it isn't an option for everyone. The stiff sidewalls give the tire a strange flex as well... not as "mushroomed" as the KM2, but it kind of folds to one side or the other for the most part. And the compound seems to be a harder material.... might be good for longevity, but not necessarily so good in the rocks when you want the tire to stick.

I'm not getting rid of my MTRs, but when they are ready to be replaced, I'll go back to the KM2.
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post #21 of 48 Old 06-22-2010, 10:29 AM
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Like Abendx, I also miss my KM2s for the type of wheeling I like (mostly dry rock). But I can't get past the tire size issue.

I am currently running 37" Iroks and like the off-road performance. The Iroks are an extremely well balanced off-road tire that do just about everything well, but they suck on the street, wear extremely fast, and chunk like crazy on the outer-most lugs when abused in the rocks.

I am also running the MTR/kevlars on my TJ and they are good all-around tires, and are fantastic in wet conditions. My only complaint is that they do a little more slipping in the rocks than the other tires. The MTRs have the best street ride of any mud terrain tire I have used.

My next set of tires will be either Pit Bulls or Toyos.
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post #22 of 48 Old 06-22-2010, 10:57 AM
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Quote:
Originally Posted by shytime View Post
What about the Mickey MTZ's? I've read a lot about their tread life being solid for a mud tire. They also appear to do well off road as well.
My buddy is running them on his XJ and they are a really nice tire. Quiet, balanced well (with airsoft pellets), really grip on the trail, and have an amazing appearance!
I am strongly considering them for my next tire.
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post #23 of 48 Old 06-22-2010, 12:00 PM
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Re: Goin 37's advice on which tires

Mickey MTZs are great tires. I am very happy with them.
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post #24 of 48 Old 06-23-2010, 12:11 PM
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We're running 35 MT MTZ's on our 2000 TJ, and 37 Toyo MT's on the wifes JK, very happy with both tires. Not too loud, good on the street, mud and snow. We were running DC FCII's and while they were great on dry roads, they were useless in the snow and mud.

You say you're 80% DD, but do you live in an area that gets snow? A big wide tire that doesn't have an aggressive enough tread in the snow will fill up and not clean out, at least that was the issue with our FCII's

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post #25 of 48 Old 06-23-2010, 12:29 PM
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Quote:
Originally Posted by Mt.GoatJK View Post
those bfg km2s have a tendency to wear fast so for a daily driver they might not last that long.
Quote:
Originally Posted by MarcusRTJ View Post
Nice research before posting.
yeah really. I have never seen anyone say that and I also happen to have 70,000 miles on my KM2's right now. I'll post pics later.


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