Head-to-head Updated

Cooper Discoverer AT3 XLT vs General Grabber AT3 — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Discoverer AT3 XLT is ahead, 76–71

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Tire ACooper

Discoverer AT3 XLT

Premium Touring All Season tire

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.”

Tire BGeneral

Grabber AT3

All Season

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:”

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 78

    Dry

    Discoverer AT3 XLT +9
    69
    Why this score
    SourceDiscoverer AT3 XLTGrabber AT3
    Professional tests (TWG score)–66
    Reviews found online8474
  2. 80

    Wet

    Discoverer AT3 XLT +10
    70
    Why this score
    SourceDiscoverer AT3 XLTGrabber AT3
    Professional tests (TWG score)–68
    Reviews found online8474
  3. 70

    Snow

    Grabber AT3 +4
    74
    Why this score
    SourceDiscoverer AT3 XLTGrabber AT3
    Professional tests (TWG score)–77
    Reviews found online7071
  4. 74

    Comfort

    Discoverer AT3 XLT +2
    72
    Why this score
    SourceDiscoverer AT3 XLTGrabber AT3
    Reviews found online7975
  5. 72

    Noise

    Level
    72
    Why this score
    SourceDiscoverer AT3 XLTGrabber AT3
    Professional tests (TWG score)–75
    Reviews found online81–
  6. 72

    Treadwear

    Discoverer AT3 XLT +1
    71
    Why this score
    SourceDiscoverer AT3 XLTGrabber AT3
    Reviews found online7774
  7. 78

    Handling

    Discoverer AT3 XLT +6
    72
    Why this score
    SourceDiscoverer AT3 XLTGrabber AT3
    Reviews found online7872
Scores at a glance
Cooper Discoverer AT3 XLT vs General Grabber AT3: scores by category (0–100)
CategoryCooper Discoverer AT3 XLTGeneral 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.

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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

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Headline score

Discoverer AT3 XLT

Grabber AT3

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Discoverer AT3 XLT

Pros

  • Significantly lower road noise than comparable aggressive all-terrain tires
  • Excellent wet weather, snow, and slush traction
  • Sturdy sidewalls and stable performance when towing heavy loads

Cons

  • Some users report difficulty with balancing, leading to vibrations or a rough ride
  • Tread life occasionally falls short of expectations for certain drivers
  • Can struggle or get gummed up in deep mud
All owner themes in the Discoverer AT3 XLT review

Tire B Grabber AT3

Pros

  • Exceptionally low road noise for an all-terrain tire, maintaining high highway comfort
  • Strong on-road handling and grip in both dry and wet conditions
  • Reliable light off-road traction, particularly on grass, gravel, dirt tracks, and light mud

Cons

  • Softer sidewalls can lead to vulnerability against sharp stones, flints, or tree stumps
  • Subpar performance on compacted snow and ice compared to dedicated winter tires
  • Tread can pack up and struggle in deep, heavy, or extremely soft mud
All owner themes in the Grabber AT3 review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Cooper Discoverer AT3 XLT

Positive

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.

r/ram_trucks ·27 upvotes ·2024-07-11

“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.”

cumminsforum.com ·2024-08-31

“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.”

f150forum.com

“Quote: Originally Posted by SodiumMonkey Thanks for the reply. I actually read through your entire build thread last night. Wow. Awesome stuff there. I’m 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 don’t want to trim anything and don’t 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.”

Top themes
#low road noise#tread longevity and wear#snow and winter traction#tire sizing and fitment#ride quality and comfort#towing performance

Based on 13 community posts

Tire B

General Grabber AT3

Positive

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.

Top themes
#tread life and durability#gravel and off-road performance#ride comfort and low noise#snow and loose terrain grip#tire damage and sidewall integrity#fitment and tire pressure

Based on 20 community posts

Specs side by side

Attribute A · Cooper Discoverer AT3 XLT B · General Grabber AT3
CategoryPremium Touring All Season tireAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available477
Rim diameters16″ – 20″15″ – 22″
Tread depth16 - 18/32″—
Treadwear warranty60,000 mi—
SidewallBlack Side Wall - Raised White Lettering—
Max pressure35 - 80 psi—

Which one should you actually buy?

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.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 XLT scores 80 vs 70 on wet.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 XLT scores 78 vs 69 on dry.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 XLT scores 78 vs 72 on handling.

Pick tire B You drive through snowy winters

General Grabber AT3 scores 74 vs 70 on snow.

Tire A · Cooper Discoverer AT3 XLT
Tire B · General Grabber AT3

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How do we compare tires?

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.

76

Leads

Discoverer AT3 XLT

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