New Rubber- Cooper Discoverer AT3

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Thread: New Rubber- Cooper Discoverer AT3

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    Default New Rubber- Cooper Discoverer AT3

    Well ended up forking over some cash for some new Cooper Discover AT3's Load Range C after damaging one of my rear tires (they were Ragged fails anyway)
    I gotta say these tires look way more aggressive in person than they do on Coopers Website. So far im very impressed on how they handle on/off road. I haven't taken them through mud yet but handles very well on gravel roads. Too soon to tell on wear. Hope to test these in rain (if we ever get some rain)
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    2011 Magnetic Grey Toyota Tundra 5.7 SR5 4x4
    w' TRD Offroad Package

    18x9 Ultra Baron Wheels on LT275/65/18 Cooper Discoverer AT3's
    Extang Trifecta Tonneau Cover
    TRD Cold Air Intake
    TRD Billet Grille
    2 10" Kicker L3 Subwoofers Powered by MB Quart fx1:600 Amp
    Borla ProXS muffler
    Weathertech Floormats

    Future Mods:
    2.5" Levelling kit/ 33'' Tires



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    Veteran Member RRzxter's Avatar
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    Default Re: New Rubber- Cooper Discoverer AT3

    265/70/18 C rated, 8k mi.
    Did great last winter.
    Tread wear might be a bit better, but they see a lot of pavement and I don't let up in the curves.
    So, the fronts wear a tiny bit quicker, but they're getting rotated this week.



    I like these tires. But I wanna try out the Michelin LTX A/T2's next.

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    Default Re: New Rubber- Cooper Discoverer AT3

    Those look good on there. I haven't seen them in person yet, but they do look pretty aggressive on the truck compared to cooper's website.

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    Default Re: New Rubber- Cooper Discoverer AT3

    It will be interesting to see how the tire mileage on the AT3's compares with the ATR's. The ATR's on my Tundra have about 44k on them and look like they should make it through another winter.
    I have a set of AT3's on my Sprinter and they seem to be holding up well at about 20k. The Sprinter is hard on tires so that's a good sign.
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    Default Re: New Rubber- Cooper Discoverer AT3

    Are they noisier than your previous tires?

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    Default Re: New Rubber- Cooper Discoverer AT3

    Quote Originally Posted by Heatwave View Post
    Are they noisier than your previous tires?
    If you're asking about the AT3's, yes.
    But I can only compare them to the factory Bridgestones, as those are the only 2 tires I've had on this truck so far.
    The stockers had great wet and dry traction. The steering felt heavy and centered. Very quiet and smooth ride.
    However, they were very soft and at 6k mi., already showed a lot of wear. I wanted to get them off before the truck's 1st winter.
    The AT3's are a harder compound, steering was very light until they wore down a bit.
    Ride is just a tad rougher and louder. Nothing excessive. They're holding up pretty good.
    Would probably still look new at 8k mi., but I haven't been very nice to them
    I'm not sure if I wanna go to an E rated tire when I switch to the Michelins and give up a little ride comfort.
    But man, they last forever.

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    Default Re: New Rubber- Cooper Discoverer AT3

    Quote Originally Posted by mendonsy View Post
    It will be interesting to see how the tire mileage on the AT3's compares with the ATR's. The ATR's on my Tundra have about 44k on them and look like they should make it through another winter.
    Does Cooper still make the ATR?
    I thought I saw that they discontinued them.
    Or, at least redesigned the tread.

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    Default Re: New Rubber- Cooper Discoverer AT3

    Quote Originally Posted by RRzxter View Post
    Does Cooper still make the ATR?
    I thought I saw that they discontinued them.
    Or, at least redesigned the tread.
    Cooper has discontinued the ATR. The AT3 is the replacement for it.
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    Default Re: New Rubber- Cooper Discoverer AT3

    Ride is a tad rougher and there is a little noise but nothing terrible. They definately look a lot more aggressive in person than they do on Coopers website. A lot better than the ragged trails I had on before.

    2011 Magnetic Grey Toyota Tundra 5.7 SR5 4x4
    w' TRD Offroad Package

    18x9 Ultra Baron Wheels on LT275/65/18 Cooper Discoverer AT3's
    Extang Trifecta Tonneau Cover
    TRD Cold Air Intake
    TRD Billet Grille
    2 10" Kicker L3 Subwoofers Powered by MB Quart fx1:600 Amp
    Borla ProXS muffler
    Weathertech Floormats

    Future Mods:
    2.5" Levelling kit/ 33'' Tires



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    Default Re: New Rubber- Cooper Discoverer AT3

    Nice tires. Coopers were my first choice over nittos, but nitto had the size i wanted (295/70/18)
    = 'Ball Hawk'

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    Default Re: New Rubber- Cooper Discoverer AT3

    I just replaced my trusty BFG AT KO with some new Cooper At3 tires, LT275/65R18 Load range E. Consumers reports rated these as the best AT tire. I was very happy with the BFG and got 71,000km but wanted to try something different. Winter is just starting here. What I notice right away is that the road noise is reduced a fair bit. The BFG were not that loud but were audible without the radio on and made growling noises as you rolled to a stop. Definitely nothing bad. The At3 make are quieter at all speeds and make more of a very mild jet noise at highway speed. At low speed they are silent. General handling seems about the same although I just noticed that they put them at "toyota pressure" and not at the 45/55 I usually run. I will air them up tomorrow and see how they feel.. They are definitely more aggressive looking on the truck than on the website pictures. It was not a consideration but the price was about $50 a tire less than the BFG. Cam.

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    Default Re: New Rubber- Cooper Discoverer AT3

    An Update. These tires are nice. With them aired up to 45/45 they steer and ride like a dream. Probably just a bit better feel and ride than my old KOs. Road noise is a huge improvement - they are very-very quiet for a truck tire, almost silent at highway speeds. Its been warm here so no opportunity to get them into the snow. I usually run the rears at 55 but I think I will use 45 for the winter for additional traction. Cam.

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    Default Re: New Rubber- Cooper Discoverer AT3

    cooper is making some nice stuff these days and there made in USA as well, so that's good.

    I am going to go with the ST Maxx coopers, I think.

    Am I the only one who kinda likes a little tire noise, LOL. I don't want MT tire noise but I little meat hitting the ground doesn't bother me.

    anything but these firestone ATs, these blow. They are very quiet though, but they SUCK in wet conditions, have no off-road, or snow traction. Also, the P-rating feels like marshmellows sometimes.
    2013 Ram Crew Sport 4x4, 5.7, 8-speed, 3.92, Borla exhaust
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    Default Re: New Rubber- Cooper Discoverer AT3

    I am debating between the AT3 and S/T maxx myself. I plow with my truck also, not sure which would be better.
    Im running the BFG KO's now and I didnt get as many miles out of them as I wouldve liked.
    2007 Tundra 5.7 4x4 SR5 TRD Offroad Package
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    Supporter Breathing Borla's Avatar
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    Default Re: New Rubber- Cooper Discoverer AT3

    bought the st maxx today with discount

    I will report back when they are intalled
    2013 Ram Crew Sport 4x4, 5.7, 8-speed, 3.92, Borla exhaust
    2010 Tundra 4x4 5.7 Limited, Slate, TRD RW Wheels with 33" Cooper ST Maxx (sold)
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