They have variations of the AT3 in various sizes and models. There's the AT3-4S, LT, and XLT. Think of it as mild, medium, and hardcore. You can get stock size in 4S or LT versions. I had the 285/70/17 XLT's with a 2.5" lift, 4+ caster, pushed back and trimmed the fender liner and it still rubbed. Each setup will be different but you should expect to have to do some modification and maybe a BMC to clear it.

Thanks. I ordered the AT3-4S via TireCrawler for delivery at home in Stevensville MT. Saves CA Sales Tax and Tire disposal fee. Free shipping.

assuming that rubbing is at full lock and backing up

What spec are your Rims?

I am 3" spacer lift/leveling with After market UCA to maintain geometry; on the XP wheels 20x9+18mm


Being that I am 0.5" taller and depending on wheel specs I should be above the inflection point on the outer most part of the tire and thus clear the mudflaps with out mod at full lock even with a 33 OD tire.

I get it at 3/4 lock turning driver. OEM Trail wheels.

I had pretty much settled on this as my next tire, bu I was having trouble finding whether or not the XLT version of the tire was M+S rated or 3PMSF, so I emailed Cooper. They responded that it depends on tire size, but that 285/70R17 is NOT a "Severe Weather rated tire."

So I guess my hunt for a decent AT that handles snow as well as rain is back on.

Falken Wildpeak AT3W.

I’ve ran those (SL) KO2s (C) and Ridge Grapplers (C) all in 285/70-17. The Falkens far and away are the superior tire for on road manners and adverse weather. Their off road performance has been impressive and only marginally behind the Ridge Grappler, if at all. Pass on the KO2. They failed to impress me in any scenario.

Falken also offers that size in load range C. That wasn’t the case hence my choice for SL. Read up on them. Impressive tire. Cooper missed the mark here not making them mountain snowflake rated. Hard pass for me.


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I really kinda hate the way the Falkens look, but I may have to settle for them. I have KO2s now and they are just garbage on wet roads. I heard the same for Ridge Grapplers too. We get too much rain in the winter to not have a decent wet weather tire and I spend too much time in the mountains in the snow to not have a tire with the M+S or 3PMSF.

Just an FYI, the AT3 XLT has passed 3PMSF (severe service rating or "snowflake rating") in a number of sizes. However due to the nature of the conditions when testing, they haven't been able to certify all sizes yet. Because of that, they haven't all been branded with the logo. But the tire, the design, and the compounds have passed the test already, so it's effectively a snowflake rated tire. That's straight from Cooper as I am performing a long term wear test for them on these tires.

The RGs were just awful in the snow. The only time I’ve ever slid and almost crashed were on the RGs. I also saw a video of a 4R trying to climb a modest hill off road, but snow covered. It couldn’t make the climb which was pathetic. It’s all because of the tire.

While the Falkens don’t look impressive in pics for some reason, they really do look better in person. I catch people looking at them quite frequently. I think it’s a great looking tire, though I do give the sidewall look nod to the KO2. Performance, however, negates any lost points on looks (which is minimal and highly subjective). Trust me, having ran all of them, there’s no settling with the Falkens. They are an awesome tire in everything I’ve thrown at them (including mud).


Very interesting. Weight, contact patch, other issues also play a role, which is why some sizes receive the rating while others don’t. I’m sure they’re a good tire, but unless they’ve independently passed and have received the go-ahead for branding a specific size I’m buying, then it’s a hard pass. In theory it should pass but it never may for various reasons.



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Sounds good to me, no argument here. I know here in CA there is no specific requirement for 3PMSF ratings on tires in the snow, only M+S. Not sure if the same holds true for IL. I've been on both, and don't notice a big difference between M+S and 3PMSF. Unless you're chained, studded, or are on dedicated winter tires it's more subjective and up to personal experience in my opinion. Good luck with the tire hunt!

Here in Washington, when the "Chains Required" sign goes up in the passes, you do NOT have to chain up if you have AWD or 4WD and your tire is marked with M+S, 3PMSF or All-Season. The state police have started pulling drivers over to check their tires to make sure they comply with the law - it's like a $300 ticket to not have the proper traction tires. Cooper's website does list the tire as All-Season, but I'm not sure that's an argument I want to have with a state trooper on the side of the highway. I am still leaning that direction though. This tire ticks literally every other check-box I have.

For what it's worth, your article on Trail4Runner was what originally sold me on the XLTs.

I wish Falken's came in C load 285s and were as light as the KO2.

They do now come in load range C, but they’re on the heavier side and certainly more than the KO2.
I’m singing the praises of the Falkens all day long. The only things the KO2 have going are looks (subjective) and weight. Those aside, the Falkens perform infinitely better in all conditions and don’t suffer the wet traction decline seen in the KO2.

The 3PMSF rating isn’t subjective in testing performance, but I get it. I will say it was a limiting factor for me and I was about to pull the trigger on these Coopers until I saw these didn’t carry that rating. If I’m spending the money on new tires, I want to get the most bang for my buck and these fell short for me for that exact reason. If they manage to achieve this rating, then that’s a different story. Considering the cost of these, I just couldn’t do it as much as I like the look of the tire and the brand.

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They do. Falken hasn't published the weight on these yet but I'm guessing they weight the same as their E-rated brethren, ~58lbs.

Falken Wildpeak A/T3W LT285/70R17 | TireBuyer

I've had both Cooper AT3-XLT and Falken AT3/W. Currently running the Falken since I downsized tires. I used them both for a Utah winter on snow pack roads, down icy canyon highways, traveling to different ski resorts in UT, ID, and WY. I have no complaints about the Cooper's or Falken's winter performance. I think you're putting a little too much emphasis on the 3PMSF rating, almost like it's a mental block or some form of validation/security to have them. The BFG's are winter rated and have 3PMSF rating and they perform A LOT worse than the Cooper's in winter. Go figure.

I appreciate your thoughts. As you know, tires have to achieve given performance benchmarks to receive the snowflake rating. If a company has taken the time and effort to assure their tire meets that standard, then they earn my business. It doesn’t matter to everyone but it did to me. It’s not just snake oil but I get it. The Coopers may be a great tire. Just have to figure out what matters.


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