Tests – · none yet Owners 80 · 800 reviews
“Put some new tires on the XD today. Cooper Discoverer AT3 XLT in 275/70R18. I usually run BFG KO2s on my trucks but wanted to try something different this time.”
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Discoverer AT3 XLT is ahead, 76–71
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Tests – · none yet Owners 80 · 800 reviews
“Put some new tires on the XD today. Cooper Discoverer AT3 XLT in 275/70R18. I usually run BFG KO2s on my trucks but wanted to try something different this time.”
Tests 70 · 2 tests Owners 73 · 250 reviews
“General Grabber AT3, Africa and a 2x4 Benz Hi y'all, I'm Norman and together with my girlfriend Mélanie we are close to our dream of riding our 2x4 Mercedes Transporter from 1986 from Switzerland down to South Africa. We'll be taking the west coast road and are overly excited for this two years long trip. We are planning the trip so, that we will be during the dry season in West Africa. Of course the 2x4 is probably not the best choice but should be manageable with a couple aluminum recovery boards, cords, shovel and trucks claws (these traction things to strap around the tire) and last but not least some (5 in total ;) General Grabber AT tires along with a compressor and a puncture fixing set... Puuuh, sounds a lot but is it enough? What are your thoughts?? I mean we'll be doing it ANY WAY. Because a smart man once said "You'd be crazy NOT to go". Just interested if we should consider anything else? Thank you so much for your time 🙂 Mélanie and Norman For everyone who's interested how it will go:”
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Discoverer AT3 XLT | Grabber AT3 |
|---|---|---|
| Professional tests (TWG score) | – | 66 |
| Reviews found online | 84 | 74 |
| Source | Discoverer AT3 XLT | Grabber AT3 |
|---|---|---|
| Professional tests (TWG score) | – | 68 |
| Reviews found online | 84 | 74 |
| Source | Discoverer AT3 XLT | Grabber AT3 |
|---|---|---|
| Professional tests (TWG score) | – | 77 |
| Reviews found online | 70 | 71 |
| Source | Discoverer AT3 XLT | Grabber AT3 |
|---|---|---|
| Reviews found online | 79 | 75 |
| Source | Discoverer AT3 XLT | Grabber AT3 |
|---|---|---|
| Professional tests (TWG score) | – | 75 |
| Reviews found online | 81 | – |
| Source | Discoverer AT3 XLT | Grabber AT3 |
|---|---|---|
| Reviews found online | 77 | 74 |
| Source | Discoverer AT3 XLT | Grabber AT3 |
|---|---|---|
| Reviews found online | 78 | 72 |
| Category | Cooper Discoverer AT3 XLT | General Grabber AT3 |
|---|---|---|
| Relative Score | 76 | 71 |
| Dry | 78 | 69 |
| Wet | 80 | 70 |
| Snow | 70 | 74 |
| Comfort | 74 | 72 |
| Noise | 72 | 72 |
| Treadwear | 72 | 71 |
| Handling | 78 | 72 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Discoverer AT3 XLT
Grabber AT3
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
Community members report high satisfaction with the Cooper Discoverer AT3 XLT, highlighting its quiet ride, long tread life, and strong winter performance. Several owners praise its smooth ride quality and durability under towing conditions compared to rival all-terrain tires. Discussion also commonly centers around sizing, fitment, and snow ratings.
“Cooper Discoverer AT3 XLT Picked up a set of Discoverer AT3 XLT from simple tire. With the 4th of July discounts all 4 were under 1k before taxes. I had the AT3 4S on a previous ram and they held up so I’m expecting good things here.”
“I figure any tire review is good, even if late. I'm nearing the end of use for Cooper Discoverer AT3 XLT in LT275/70R18E 125S on OE 18x8" chrome clad wheels. They have been fantastic tires , great in the snow, quiet, never felt like they were giving up any traction except for the fourth (last) winter, but they never felt dangerous. They wore dead flat across the tread, kept the fronts at 65# and rears at 75#, rotated about every 5k miles, used Thuren alignment specs. They made 50k miles (the warranty in 2020) no problem. I have no problem getting them again or recommending them, but I like trying something different. If the different tires I chose this time don't work out (45 days), I'll just get these Coopers again.”
“Quote: Originally Posted by SodiumMonkey Thanks for the reply. I actually read through your entire build thread last night. Wow. Awesome stuff there. Im planning on keeping the OEM Platinum trim 20 wheels. So I could run the Discoverer AT3 XLT 275/65 R20 without any rub at all with either a 2 spacer level or something like this kit from Fox? I dont want to trim anything and dont want any rub even when suspension is flexed. It seems like most info online indicates a 33 tire is the max for a 2 level and no rubbing. I believe the 275/65 R20 is a 34 tire. Thanks for the advice! I only ever rubbed with my 285/65R20s when I was reversing and turning right down an angled driveway, on the street and flat ground it never rubbed. Offroad is where I had the most rubbing but that is expected. A 275/65R20 is what a lot of people run with only a 2 inch level. It fills the wheel wells nice and it will very rarely rub in any on road circumstance, no matter how you level the truck. A 33" tire is too small in my personal opinion.”
Based on 13 community posts
Community feedback for the General Grabber AT3 is largely positive, with owners highlighting strong tread longevity, smooth ride comfort, and low road noise. Drivers also appreciate its off-road capability in gravel, mud, and snow, though occasional questions arise regarding sidewall damage, cracking, and tire sizing fitment.
“How long have I got? Grabber at3s, plenty of tread but I’m seeing some cracks forming. Are these something I need to be concerned about imminently or am I safe to continue driving for a few more months?”
“Another for the AT3 EV. If you search around you can get them cheaper. I got mine for $328/tire out the door, but I had to wait a few days for them to arrive, as there were none of them in my region at the time.”
“Tyre Tear Switched fulltime about 6 months ago to these General Grabber AT3 (manufacture 2021) that I had as spares and recently noticed this tear on the surface. Not sure if it's from road debris or a bottle, but wondering what it means for the tyre integrity. Done about 7,000 kms in these”
Based on 20 community posts
| Attribute | A · Cooper Discoverer AT3 XLT | B · General Grabber AT3 |
|---|---|---|
| Category | Premium Touring All Season tire | All Season |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 4 | 77 |
| Rim diameters | 16″ – 20″ | 15″ – 22″ |
| Tread depth | 16 - 18/32″ | — |
| Treadwear warranty | 60,000 mi | — |
| Sidewall | Black Side Wall - Raised White Lettering | — |
| Max pressure | 35 - 80 psi | — |
Cooper Discoverer AT3 XLT
General Grabber AT3
Winner: Cooper Discoverer AT3 XLT — better wet, dry and handling. Pick the General Grabber AT3 if snow matters most to you.
Cooper Discoverer AT3 XLT scores 80 vs 70 on wet.
Cooper Discoverer AT3 XLT scores 78 vs 69 on dry.
Cooper Discoverer AT3 XLT scores 78 vs 72 on handling.
General Grabber AT3 scores 74 vs 70 on snow.
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Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Community buzz from Reddit and forums is shown for context only — it never changes the score.