Head-to-head Updated

Cooper Discoverer AT3 4S vs General Grabber A/TX — 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 1 + 0 road tests and 688 + 373 owner reviews. How we score

Discoverer AT3 4S is ahead, 79–68

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Cooper Discoverer AT3 4S
Tire ACooper

Discoverer AT3 4S

All-Terrain tire

± 7

Tests – · 1 test Owners 84 · 688 reviews

Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (tested tread life (miles))

“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”

General Grabber A/TX
Tire BGeneral

Grabber A/TX

All-Terrain tire

± 7

Tests – · none yet Owners 68 · 373 reviews

“275/60r20 General Grabber A/Tx Just thought I'd share what my truck looks like with a slightly larger tire size in case anyone wondered. No level, just stock. Good looking tires in my opinion.”

Category by category

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

  1. 81

    Dry

    Discoverer AT3 4S +13
    68
    Why this score
    SourceDiscoverer AT3 4SGrabber A/TX
    Professional tests (TWG score)≈ 77 (est.)≈ 68 (est.)
    Reviews found online8968

    Discoverer AT3 4S: 60% × 76.5 (est.) + 40% × 88.5 = 81

    Grabber A/TX: 60% × 67.9 (est.) + 40% × 67.9 = 68

    No road tests of dry for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

    No road tests of dry for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 85

    Wet

    Discoverer AT3 4S +12
    73
    Why this score
    SourceDiscoverer AT3 4SGrabber A/TX
    Professional tests (TWG score)≈ 82 (est.)≈ 73 (est.)
    Reviews found online9174

    Discoverer AT3 4S: 60% × 81.7 (est.) + 40% × 90.7 = 85

    Grabber A/TX: 60% × 72.6 (est.) + 40% × 74 = 73

    No road tests of wet for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 73

    Snow

    Discoverer AT3 4S +5
    68
    Why this score
    SourceDiscoverer AT3 4SGrabber A/TX
    Professional tests (TWG score)≈ 72 (est.)≈ 69 (est.)
    Reviews found online7567

    Discoverer AT3 4S: 60% × 71.9 (est.) + 40% × 74.7 = 73

    Grabber A/TX: 60% × 69.4 (est.) + 40% × 66.9 = 68

    No road tests of snow for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

    No road tests of snow for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 80

    Comfort

    Discoverer AT3 4S +19
    61
    Why this score
    SourceDiscoverer AT3 4SGrabber A/TX
    Professional tests (TWG score)≈ 72 (est.)≈ 67 (est.)
    Reviews found online8558

    Discoverer AT3 4S: 40% × 72.1 (est.) + 60% × 85.2 = 80

    Grabber A/TX: 40% × 66.6 (est.) + 60% × 58 = 61

    No road tests of comfort for Discoverer AT3 4S. 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 A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. 73

    Noise

    Discoverer AT3 4S +9
    64
    Why this score
    SourceDiscoverer AT3 4SGrabber A/TX
    Professional tests (TWG score)≈ 66 (est.)≈ 66 (est.)
    Reviews found online8360

    Discoverer AT3 4S: 60% × 66.3 (est.) + 40% × 83.1 = 73

    Grabber A/TX: 60% × 66.3 (est.) + 40% × 59.5 = 64

    No road tests of noise for Discoverer AT3 4S or Grabber A/TX. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 75

    Treadwear

    Discoverer AT3 4S +5
    70
    Why this score
    SourceDiscoverer AT3 4SGrabber A/TX
    Professional tests (TWG score) · 1 / – tests71≈ 69 (est.)
    Reviews found online8072

    Discoverer AT3 4S: 60% × 71.1 + 40% × 79.9 = 75

    Grabber A/TX: 60% × 68.6 (est.) + 40% × 72.4 = 70

    No road tests of treadwear for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 80

    Handling (owners)

    Discoverer AT3 4S +21
    59
    Why this score
    SourceDiscoverer AT3 4SGrabber A/TX
    Reviews found online8059
Scores at a glance
Cooper Discoverer AT3 4S vs General Grabber A/TX: scores by category (0–100)
CategoryCooper Discoverer AT3 4SGeneral Grabber A/TX
Relative Score 79 68
Dry 81 68
Wet 85 73
Snow 73 68
Comfort 80 61
Noise 73 64
Treadwear 75 70
Handling (owners) 80 59

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.

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Neutral
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Neutral
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Recomputed
Headline score
± 7

Discoverer AT3 4S

± 7

Grabber A/TX

Pros, cons & observations

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

Tire A Discoverer AT3 4S

Pros

  • Exceptionally quiet and smooth on-road ride compared to typical all-terrain tires
  • Superb traction in wet, rainy, and deep winter snow conditions
  • Strong value and competitive pricing relative to performance and lifespan

Cons

  • Potential for accelerated tread wear under heavy off-road use or demanding mountain driving
  • Occasional reports of balancing issues or out-of-round tires requiring multiple adjustments
  • Minor fuel economy drop or increased rolling resistance when switching from standard highway tires
All owner themes in the Discoverer AT3 4S review

Tire B Grabber A/TX

Pros

  • Exceptional winter and snow traction (3-peak mountain snowflake rated)
  • Impressively low road noise and high ride comfort for an aggressive all-terrain tire
  • Strong wet and dry road grip with confident handling

Cons

  • Noticeable decrease in fuel economy (MPG drop)
  • Tread tends to pick up and throw small stones and pebbles
  • Mixed reviews on long-term treadwear and longevity
All owner themes in the Grabber A/TX review

What real owners are saying

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

Tire A

Cooper Discoverer AT3 4S

Positive

Community sentiment for the Cooper Discoverer AT3 4S is predominantly positive, with drivers praising its quiet highway ride, strong traction across snow, rain, and dry pavement, and appealing appearance. Several owners note that while it handles light off-road duties and daily driving well, tread life occasionally falls short of mileage expectations. In addition, multiple posts highlight frustration and concern regarding availability and recent discontinuation across various sizes.

Top themes
#Snow and wet traction#Quiet highway ride#Tread life and longevity#Discontinuation and availability#Comfortable ride quality#Mild off-road performance

Based on 27 community posts

Tire B

General Grabber A/TX

Positive

Community sentiment toward the General Grabber A/TX is largely positive, with owners frequently praising its winter traction on snow and ice as well as its quiet highway ride. Buyers appreciate its availability in lighter standard load ratings and competitive pricing compared to rivals like the BFG KO2. Minor drawbacks cited include fuel economy loss with heavier LT versions and a tendency for the tread to pick up and fling gravel rocks.

Top themes
#Snow and ice traction#Highway road noise#Standard load availability#Fuel economy impact#Rock retention and throwing#Ride quality and PSI

Based on 37 community posts

Specs side by side

Attribute A · Cooper Discoverer AT3 4S B · General Grabber A/TX
CategoryAll-Terrain tireAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available1444
Rim diameters15″ – 22″15″ – 22″
Tread depth12 - 14/32″14 - 17/32″
UTQG620 A B640 A A - B
Treadwear warranty65,000 mi—
SidewallBlack Side Wall - Raised Outline White LetteringBlack Side Wall - Raised White Lettering
Max pressure44 - 50 psi35 - 80 psi
Sizes in common88

Which one should you actually buy?

Cooper Discoverer AT3 4S

General Grabber A/TX

Winner: Cooper Discoverer AT3 4S — better handling, comfort and dry. It leads or ties in every category we score.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 4S scores 80 vs 59 on handling.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 4S scores 80 vs 61 on comfort.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 4S scores 81 vs 68 on dry.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 4S scores 85 vs 73 on wet.

Tire A · Cooper Discoverer AT3 4S
Tire B · General Grabber A/TX

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Discoverer AT3 4S or Grabber A/TX?

Which is better in the wet, Discoverer AT3 4S or Grabber A/TX?

Cooper Discoverer AT3 4S, 85 vs 73 on our wet score.

Which grips better on dry roads, Discoverer AT3 4S or Grabber A/TX?

Cooper Discoverer AT3 4S, 81 vs 68 on our dry score.

Which is better in snow, Discoverer AT3 4S or Grabber A/TX?

Cooper Discoverer AT3 4S, 73 vs 68 on our snow score.

Which is quieter, Discoverer AT3 4S or Grabber A/TX?

Cooper Discoverer AT3 4S, 73 vs 64 on our noise score.

Which is more comfortable, Discoverer AT3 4S or Grabber A/TX?

Cooper Discoverer AT3 4S, 80 vs 61 on our comfort score.

Which lasts longer, Discoverer AT3 4S or Grabber A/TX?

Cooper Discoverer AT3 4S, 75 vs 70 on our treadwear score.

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