The sidewall itself also functions like a mud-terrain tire, with added features serving a dual purpose of protecting the sidewall against rock slices, while also delivering an added level of grip in deep loose earth or mud.Īnd if you closely inspect the shoulder lugs they are scalloped with an alternating pattern, giving this tire much more grip in loose earth or mud than a conventional all-terrain tire. The lugs also feature siping to help in wet and snowy weather, although this isn’t a winter-certified tire – the AT3 4S is.
![cooper discovery at3 cooper discovery at3](https://www.miwan.pl/img/b01/cooper_discoverer_at3_sport_2.jpg)
Small stones getting caught in the tread is one of the key factors in uneven tire wear and, therefore, premature tire life.Įach tire lug also comes with ribbed sides for added grip, while the shoulder blocks have small ledges built into them for rock crawling. Look at each tread lug and you’ll see small ledges before they join the base of the tire. Getting a warranty of that level, on a tire designed for serious use on really big trucks, is remarkable.Īnd to point out, the tire is designed not just for impressive off-roading, but to also do real work, carrying heavy payloads and weight under towing. What this means is that they designed the shape of the tire’s surface to wear more evenly over time, allowing it to come with an incredible 60,000 mile treadwear warranty.
![cooper discovery at3 cooper discovery at3](https://m.media-amazon.com/images/I/51fqVnwDDyL._SL500_.jpg)
To help in durability over time, Cooper has employed what it calls “Even Wear Arc” technology. In many respects its like a hybrid terrain tire (a tire category that combines all-terrain and the more extreme mud-terrain segments) although Cooper doesn’t classify it as such. As for the AT3 XLT, it delivers much of the same features as the LT, but is designed specifically for extreme off-roading with plenty of sizes for lifted trucks with customized suspension setups. You can read about the Discoverer AT3 4S here and the Discoverer LT here.
![cooper discovery at3 cooper discovery at3](https://www.egzotika.lt/media/amasty/amlabel/Group29.png)
So rather than make one tire do the job of three, Cooper developed three unique tires. But as always, specific buyers asked for more. One of three new tires in the Cooper Discoverer lineup, the AT3 XLT joins the AT3 4S and AT3 LT in an expanded lineup of specialized products for truck and SUV drivers.Ĭooper made a name for itself in the off-road industry with the original Discovery AT3.