Cooper A/T3’s with some sidewall coming

[renau001]

I know there’s a lot of of love for the AT3’s here. Been looking into tires recently and just saw this and thought I’d leave it here:

Cooper Unveils Discoverer AT3 Tire Line - Suppliers - Modern Tire Dealer

 

[Shiftless Joe]

The AT3 XLT do look sharp. We have over 35,000 miles on the wife's AT3's on her 4Runner and they still look like new, much impressed with them.

 

[gdvan01]

Love my AT3's, I'll be checking out those new meats when the time comes...

 

[yotaguy674]

Cooper tires are complete junk. Had some A/T's that only lasted 15k miles and the tread came off 2 tires. Never again!:flamethrwoer2:

 

[ScoMey]

The AT3 4S appears to be very similar to the existing A/TW tire from Cooper... I've been running those for about 40,000 miles now and I've been happy with them so far...

 

[tackleberry1145]

The new at3s look pretty good, but with these ST MAXXs of mine giving me a pull to the right, I'm a bit wary of Cooper right now. I love the look and performance of my tires, but the pull is aggravating as hell.

 

[Muzzle of Bees]

The new at3s look pretty good, but with these ST MAXXs of mine giving me a pull to the right, I'm a bit wary of Cooper right now. I love the look and performance of my tires, but the pull is aggravating as hell.

If there is evidence that a tire is bad, the manufacturer will replace it. It is just that easy. Otherwise, there are a hundred things that cause your symptom.

 

[Throwback]

The whole chunky sidewall thing is funny to me. Now that the relatively lame Coopers have sexy sidewalls and white lettering like the BFGs they'll start selling and being awesome, especially if they stay at a fraction of the price of BFGs.

Just like how nobody cared about the old Falken ATs until the new ones with the big sidewalls came out and now they're awesome.

 

[C-los]

I recently got some 285/70/17 from cooper to go with the ome 3” lift and they look kinda small. Don’t know if cooper tires run small or maybe it’s the positive off set on the stock wheels.. no rub whatsoever which I was expecting it to rub

 

[jdurunner]

If there is evidence that a tire is bad, the manufacturer will replace it. It is just that easy. Otherwise, there are a hundred things that cause your symptom.

I can vouch for the pull to the right. It’s a common complaint about the ST Maxx on both Toyota and Jeep forums. I am neurotic about my alignment and perfectly in spec I’d always have a pull to the right. They are great tires other than that one issue.

 

[mscot]

I wish Cooper would do a 285/70 in a C

 

[Muzzle of Bees]

I can vouch for the pull to the right. It’s a common complaint about the ST Maxx on both Toyota and Jeep forums. I am neurotic about my alignment and perfectly in spec I’d always have a pull to the right. They are great tires other than that one issue.

I am not disagreeing, but every tire I have bought comes with a satisfaction warranty too. Just sayin.

 

[Jetboy]

I can vouch for the pull to the right. It’s a common complaint about the ST Maxx on both Toyota and Jeep forums. I am neurotic about my alignment and perfectly in spec I’d always have a pull to the right. They are great tires other than that one issue.

Did you rotate them and have a pull to the left? If not - it's probably not the tires. Typically pull to the right is either camber mismatch or cross castor issue.

 

[jdurunner]

Did you rotate them and have a pull to the left? If not - it's probably not the tires. Typically pull to the right is either camber mismatch or cross castor issue.

Never had a pull to the left. Cross caster and camber always in spec. There’s a poll on Tacoma world regarding it. Seems that 25% of people pretty much immediately experience a pull to the right when they’ve gotten them mounted. I’ve since switched to the Toyo AT2 that’s now offered in 255/80R17 and I have zero pull to the right. It’s just inherent to the tread pattern always oriented to the right. Irregardless minus that one characteristic they were fantastic tires. Off road they were incredible, the tread lasted a long time and despite the larger tread blocks and not too much siping I was pretty impressed with them in the snow and rain. I’d likely buy them again and just deal with the pull. Got a smoking deal on the Toyos though.

 

[tackleberry1145]

If there is evidence that a tire is bad, the manufacturer will replace it. It is just that easy. Otherwise, there are a hundred things that cause your symptom.

Except that the pull went away entirely with my new tires and wasn't present with the prior set of tires. And good luck getting Cooper to replace 4 tires, when they won't respond to emails/messages. I have yet to see anyone have success with that.

This is a known issue with a fair number of folks having issues with them on different platforms, ie wranglers, tacomas, 4runners, etc.

 

[tackleberry1145]

Did you rotate them and have a pull to the left? If not - it's probably not the tires. Typically pull to the right is either camber mismatch or cross castor issue.

I swapped tires around to try and diagnose the issue. The pull remained consistently to the right, regardless of which tires went where.

 

[Jetboy]

I'm having a hard time understanding how it's possible for that to happen. They're radial tires that are non-directional. A pull to one side from a tire should only exist if the tire has greater rolling resistance on one side than the other. Or something very strange exists like a non-centered tread on one of the tires. The problem with any of those theories on why is that they should all reverse direction when rotated to the other side.

The only thing I can think of is if the total rolling resistance is a lot higher or lower it might exaggerate the effect of cross camber or cross caster that is designed to help with the crown of the road.

 

[wrjones05]

I recently got some 285/70/17 from cooper to go with the ome 3” lift and they look kinda small. Don’t know if cooper tires run small or maybe it’s the positive off set on the stock wheels.. no rub whatsoever which I was expecting it to rub

No rubbing on the 285's? All of my research has said otherwise.

I'm probably going to get Cooper's as well. But not the 3" lift, more like a 2, so maybe there'll be some rubbing there.

Would love to see some closer pics of these. Don't think I've seen any Cooper's on 4rs yet.

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[jdurunner]

I'm having a hard time understanding how it's possible for that to happen. They're radial tires that are non-directional. A pull to one side from a tire should only exist if the tire has greater rolling resistance on one side than the other. Or something very strange exists like a non-centered tread on one of the tires. The problem with any of those theories on why is that they should all reverse direction when rotated to the other side.

The only thing I can think of is if the total rolling resistance is a lot higher or lower it might exaggerate the effect of cross camber or cross caster that is designed to help with the crown of the road.

Oh I know, it's a total head scratcher but is something that is discussed on the Tacoma and Wrangler forums as well. I think its that no matter what the tread is always oriented \\. Those center straffes are always oriented that way. I was first introduced to the ST Maxx in the Bakken oil fields of North Dakota. The gravel roads up there not actually gravel they are a volcanic rock called scoria and they eat tires for breakfast. My old BFG KOs got absolutely trashed by them. Whole fleets ran the ST Maxx because it was found to last the longest up there. Guys in big trucks mentioned the pull too back then. But the tires performance elsewhere made up for it. Crazy I know but its just become a fairly well known characteristic of the tire.

 

[Decipher]

For a lot of us, we want a balance of looks and performance.

No matter how many positive reviews I read of the current Cooper AT3 tire, I couldn’t get past the highway tire look. This will make them sell like crazy since they’ll meet that balance of both worlds. Smart move.


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