Tests – · none yet Owners 82 · 800 reviews
“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
Head-to-head
Updated
Cooper Discoverer AT3 XLT vs General Grabber AT3 — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 2 road tests and 800 + 251 owner reviews. How we score
Discoverer AT3 XLT is ahead, 78–73
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Tests 70 · 2 tests Owners 78 · 251 reviews
Best test result: #2 of 8 in 2018 Auto Bild SUV All Season Tyre Test (noise)
“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?”
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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79
Dry
Discoverer AT3 XLT +871Why this score
Source Discoverer AT3 XLT Grabber AT3 Professional tests (TWG score) · – / 1 tests ≈ 75 (est.) 66 Reviews found online 85 78 Discoverer AT3 XLT: 60% × 75.1 (est.) + 40% × 85.3 = 79
Grabber AT3: 60% × 66.4 + 40% × 77.9 = 71
No road tests of dry for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
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83
Wet
Discoverer AT3 XLT +1172Why this score
Source Discoverer AT3 XLT Grabber AT3 Professional tests (TWG score) · – / 1 tests ≈ 80 (est.) 68 Reviews found online 87 78 Discoverer AT3 XLT: 60% × 79.7 (est.) + 40% × 87.2 = 83
Grabber AT3: 60% × 68.2 + 40% × 78.1 = 72
No road tests of wet for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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71
Snow
Grabber AT3 +475Why this score
Source Discoverer AT3 XLT Grabber AT3 Professional tests (TWG score) · – / 1 tests ≈ 71 (est.) 77 Reviews found online 72 73 Discoverer AT3 XLT: 60% × 70.9 (est.) + 40% × 71.7 = 71
Grabber AT3: 60% × 77 + 40% × 72.9 = 75
No road tests of snow for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
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77
Comfort
Discoverer AT3 XLT +275Why this score
Source Discoverer AT3 XLT Grabber AT3 Professional tests (TWG score) ≈ 71 (est.) ≈ 70 (est.) Reviews found online 80 77 Discoverer AT3 XLT: 40% × 71 (est.) + 60% × 80.3 = 77
Grabber AT3: 40% × 70.4 (est.) + 60% × 77.4 = 75
No road tests of comfort for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for Grabber AT3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
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73
Noise
Discoverer AT3 XLT +172Why this score
Source Discoverer AT3 XLT Grabber AT3 Professional tests (TWG score) · – / 1 tests ≈ 66 (est.) 76 Reviews found online 82 ≈ 66 (est.) Discoverer AT3 XLT: 60% × 66.4 (est.) + 40% × 82.4 = 73
Grabber AT3: 60% × 75.5 + 40% × 66.4 (est.) = 72
No road tests of noise for Discoverer AT3 XLT. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
No owner ratings of noise for Grabber AT3. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
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74
Treadwear
Grabber AT3 +276Why this score
Source Discoverer AT3 XLT Grabber AT3 Professional tests (TWG score) ≈ 71 (est.) ≈ 72 (est.) Reviews found online 79 82 Discoverer AT3 XLT: 60% × 71.2 (est.) + 40% × 79.4 = 74
Grabber AT3: 60% × 72 (est.) + 40% × 81.6 = 76
No road tests of treadwear for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
No road tests of treadwear for Grabber AT3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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78
Handling (owners)
Discoverer AT3 XLT +474Why this score
Source Discoverer AT3 XLT Grabber AT3 Reviews found online 78 74 -
–
Efficiency
No comparison52Why this score
Source Discoverer AT3 XLT Grabber AT3 Professional tests (TWG score) · – / 1 tests – 52
Scores at a glance
| Category | Cooper Discoverer AT3 XLT | General Grabber AT3 |
|---|---|---|
| Relative Score | 78 | 73 |
| Dry | 79 | 71 |
| Wet | 83 | 72 |
| Snow | 71 | 75 |
| Comfort | 77 | 75 |
| Noise | 73 | 72 |
| Treadwear | 74 | 76 |
| Handling (owners) | 78 | 74 |
| Efficiency | – | 52 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Recomputed
Headline score
78
/ 100
Discoverer AT3 XLT
73
/ 100
Grabber AT3
Only categories both tires have data for count toward the headline score.
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
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
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Positive
Cooper Discoverer AT3 XLT
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/Offroad
·1 upvote ·2025-10-02
“I’ve run Hankook dynapro’s, BFG ko2, Nokian outpost nat, and fallen wild peaks. Currently running Cooper discoverer AT3 XLT - they are definitely the quietest all terrains I’ve had. I would recommend them if they are available in your size - many places like simpletire or priority tire carry them.”
r/ram_trucks
·22 upvotes ·2021-11-19
“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”
r/f150
·51 upvotes ·2021-12-30
“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
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
Positive
General Grabber AT3
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.
r/VanLife
·1 upvote ·2023-01-15
“I've always used KO2s but was getting really low miles out of a set on my 1 ton van for some reason. Switched to AT3s and pretty happy with them.”
r/f150
·1 upvote ·2025-10-23
“I have at3’s on my 19 f250 , I love them 23,000 miles on them and maybe I’m halfway into the tread life . I’m easily getting at least 40,000 miles out of them probably close to 50,000 till I get a new set .”
audiworld.com
“Only got 32K on them and installed General Grabber AT3. Took a 2000 mile trip and I think the all terrain tires ride better and look bad ***.”
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 |
|---|---|---|
| Category | All-Terrain tire | All-Terrain tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 4 | 77 |
| Rim diameters | 16″ – 20″ | 15″ – 22″ |
| Tread depth | 16 - 18/32″ | — |
| UTQG | — | 560 A A |
| Treadwear warranty | 60,000 mi | — |
| Sidewall | Black Side Wall - Raised White Lettering | — |
| Max pressure | 35 - 80 psi | — |
| Sizes in common | 3 | 3 |
Which one should you actually buy?
78
/ 100
Cooper Discoverer AT3 XLT
73
/ 100
General Grabber AT3
Winner: Cooper Discoverer AT3 XLT — better wet and dry. 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 83 vs 72 on wet.
Pick tire A
You want the most grip on dry roads
Cooper Discoverer AT3 XLT scores 79 vs 71 on dry.
Pick tire B
You drive through snowy winters
General Grabber AT3 scores 75 vs 71 on snow.
Tire A · Cooper Discoverer AT3 XLT
Tire B · General Grabber AT3
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Discoverer AT3 XLT or Grabber AT3?
Which is better in the wet, Discoverer AT3 XLT or Grabber AT3?
Cooper Discoverer AT3 XLT, 83 vs 72 on our wet score.
Which grips better on dry roads, Discoverer AT3 XLT or Grabber AT3?
Cooper Discoverer AT3 XLT, 79 vs 71 on our dry score.
Which is better in snow, Discoverer AT3 XLT or Grabber AT3?
General Grabber AT3, 75 vs 71 on our snow score.
Which is quieter, Discoverer AT3 XLT or Grabber AT3?
Neither, by our numbers: 73 vs 72 on the noise score, within 3 points.
Which is more comfortable, Discoverer AT3 XLT or Grabber AT3?
Neither, by our numbers: 77 vs 75 on the comfort score, within 3 points.
Which lasts longer, Discoverer AT3 XLT or Grabber AT3?
Neither, by our numbers: 74 vs 76 on the treadwear score, within 3 points.
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.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology