Best Sierra Nevada tires: MT/R w/ Kevlar or KM2? - Page 2 - JeepForum.com
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post #16 of 23 Old 06-28-2009, 11:05 AM
XJohnnyC
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Originally Posted by Scottfloors View Post
I just did a full day through trip on th Rubicon with KM-2's they hook up great! I aired down to 10psi (running bead-locks) and tour up the Super bowl.
The Soup Bowl.

I've run the Rubicon twice on 33x12.50x15 BFG MTs and twice on 305/70/16 Maxxis Bighorns (most recently, last weekend). Both tires worked very well. The road manners on the BFGs are better than the Bighorns, although the Bighorns are not bad at all.

The sidewalls on the Bighorns are pretty thick. Much thicker than the 33x12.50x15 Goodyear MT/Rs that I had for only two months last year. I was not at all impressed with the MT/Rs, most notably the thin sidewalls. Hopefully, the new ones are better.

Even though the Bighorns have worked well, my next set of tires will probably be the KM2s.

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post #17 of 23 Old 06-28-2009, 11:34 AM
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When I lived in Tahoe last fall/winter, I was running some used 35" MT/R's and only ran in 2WD in the couple of light snowstorms we had while I was there. Granted there was only like 3" snow max on the roads, I still did fine. I just took off slow and braked early and never had a problem. Before that I had 33" BFG's, I liked both really.

Again I got my MT/R's used with 2 of them having odd wear due to poor alignment on the XJ I got them off of. they still wore OK, and I've put at least 8K on them and they're just now getting to the end of their life.
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Originally Posted by timatoe View Post
Just an FYI, I checked the prices and Costco has the KM2 35x12.5x15 for $192 per w/$15 per mount and balance.
Sounds about right. America's Tire quoted me the same, within a dollar or two of that price. If I wasn't dropping all my spare change into my 9" I'd be rockin' a brandy new set of KM2's right now

92 YJ. Lifted, rubbered, geared, and more
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post #18 of 23 Old 06-29-2009, 07:28 AM
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Originally Posted by XJohnnyC View Post
The sidewalls on the Bighorns are pretty thick. Much thicker than the 33x12.50x15 Goodyear MT/Rs that I had for only two months last year. I was not at all impressed with the MT/Rs, most notably the thin sidewalls. Hopefully, the new ones are better.
Really? My MT/Rs are 10 ply sidewalls. I didn't know that was considered thin? I know the BFG KM1s were known to have a really thin sidewall and a lot of guys that ran them on rocks had puncture problems.
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post #19 of 23 Old 06-30-2009, 02:33 PM
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Originally Posted by CMARJEEP View Post
Really? My MT/Rs are 10 ply sidewalls. I didn't know that was considered thin? I know the BFG KM1s were known to have a really thin sidewall and a lot of guys that ran them on rocks had puncture problems.
Or next to some downed branches..... But luckily that old MTR was able to get him through the rest of the trail.

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post #20 of 23 Old 06-30-2009, 03:10 PM
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x2^^^^^^ it was a fun run!!!!!

Just let me get my hands on the guys that decided to install torx bolts on JEEPS!
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post #21 of 23 Old 06-30-2009, 06:01 PM
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Originally Posted by CMARJEEP View Post
Really? My MT/Rs are 10 ply sidewalls. I didn't know that was considered thin?
Yeah, I wouldn't have thought so either. But this tire was practically brand new when the sidewall blew on the highway.

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post #22 of 23 Old 06-30-2009, 10:17 PM
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That looks defective or oddly worn to me, not a case of a thin sidewall. No tire, no matter how few plies, should blow out like that on the highway. You can see to the right of the tear there are more strands that were coming through. Looks like it somehow got worn down in that area.
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post #23 of 23 Old 07-01-2009, 12:39 AM
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I didn't immediately realize that the tire was blown since it was on the rear. I thought something was wrong with the drivetrain since the Jeep seemed to lose power.

My friends driving behind me were trying to get my attention to get me to stop. So after the tire blew, I drove maybe a mile with the tire deflated. That caused the tire to get very hot, melting the rubber and exposing the strands.

So the sidewall DID blow first with no previous damage that would cause the blowout.
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