tirewheelguide
Head-to-head Updated

Cooper Discoverer A/T3 Sport vs General Grabber X3 — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 4 + 119 owner reviews. How we score

Discoverer A/T3 Sport is ahead, 73–68

Check price on Amazon · Discoverer A/T3 Sport or Grabber X3 on Amazon
Add your size for an exact match
/R

Both Amazon links then search this exact size.

TireWheelGuide may earn a commission from purchases made through these links.

Cooper Discoverer A/T3 Sport
Tire ACooper

Discoverer A/T3 Sport

All Terrain and Off Road All Season tire

Provisional

Tests – · none yet Owners 75 · 4 reviews

General Grabber X3
Tire BGeneral

Grabber X3

Mud-Terrain tire

Tests – · none yet Owners 67 · 119 reviews

Category by category

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

  1. 75

    Dry

    Discoverer A/T3 Sport +5
    70
    Why this score
    SourceDiscoverer A/T3 SportGrabber X3
    Professional tests (TWG score)≈ 72 (est.)≈ 69 (est.)
    Reviews found online7971

    Discoverer A/T3 Sport: 60% × 72.1 (est.) + 40% × 78.6 = 75

    Grabber X3: 60% × 69.2 (est.) + 40% × 71.3 = 70

    No road tests of dry for Discoverer A/T3 Sport. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

    No road tests of dry for Grabber X3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 75

    Wet

    Discoverer A/T3 Sport +4
    71
    Why this score
    SourceDiscoverer A/T3 SportGrabber X3
    Professional tests (TWG score)≈ 74 (est.)≈ 70 (est.)
    Reviews found online7871

    Discoverer A/T3 Sport: 60% × 74.1 (est.) + 40% × 77.5 = 75

    Grabber X3: 60% × 70.4 (est.) + 40% × 70.8 = 71

    No road tests of wet for Discoverer A/T3 Sport. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

    No road tests of wet for Grabber X3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. 70

    Snow

    Level
    70
    Why this score
    SourceDiscoverer A/T3 SportGrabber X3
    Professional tests (TWG score)≈ 70 (est.)≈ 70 (est.)
    Reviews found online7070

    Discoverer A/T3 Sport: 60% × 69.8 (est.) + 40% × 69.7 = 70

    Grabber X3: 60% × 69.9 (est.) + 40% × 69.8 = 70

    No road tests of snow for Discoverer A/T3 Sport. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

    No road tests of snow for Grabber X3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 74

    Comfort

    Discoverer A/T3 Sport +10
    64
    Why this score
    SourceDiscoverer A/T3 SportGrabber X3
    Professional tests (TWG score)≈ 71 (est.)≈ 67 (est.)
    Reviews found online7958

    Discoverer A/T3 Sport: 60% × 70.8 (est.) + 40% × 78.5 = 74

    Grabber X3: 60% × 67.2 (est.) + 40% × 58 = 64

    No road tests of comfort for Discoverer A/T3 Sport or Grabber X3. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. –

    Noise

    No comparison
    61
    Why this score
    SourceDiscoverer A/T3 SportGrabber X3
    Professional tests (TWG score)–≈ 67 (est.)
    Reviews found online–52

    Grabber X3: 60% × 67.3 (est.) + 40% × 51.7 = 61

    No road tests of noise for Grabber X3. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 68

    Treadwear

    Discoverer A/T3 Sport +3
    65
    Why this score
    SourceDiscoverer A/T3 SportGrabber X3
    Professional tests (TWG score)≈ 67 (est.)≈ 66 (est.)
    Reviews found online7065

    Discoverer A/T3 Sport: 60% × 67.1 (est.) + 40% × 70.4 = 68

    Grabber X3: 60% × 65.6 (est.) + 40% × 65.4 = 65

    No road tests of treadwear for Discoverer A/T3 Sport. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

    No road tests of treadwear for Grabber X3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  7. 76

    Handling (owners)

    Discoverer A/T3 Sport +18
    58
    Why this score
    SourceDiscoverer A/T3 SportGrabber X3
    Reviews found online7658
Scores at a glance
CategoryCooper Discoverer A/T3 SportGeneral Grabber X3
Relative Score 73 68
Dry 75 70
Wet 75 71
Snow 70 70
Comfort 74 64
Noise – 61
Treadwear 68 65
Handling (owners) 76 58

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

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score

Discoverer A/T3 Sport

Grabber X3

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 A/T3 Sport

Pros

  • Exceptional ride comfort on long trips and asphalt
  • Very low fuel consumption compared to other tires
  • Strong dry grip and above-average on-road performance

Cons

  • Snow performance decreases significantly after the first year
  • Slight oversteer tendencies on wet roundabouts
  • Slipping tendencies in wet mud conditions
All owner themes in the Discoverer A/T3 Sport review

Tire B Grabber X3

Pros

  • Exceptional off-road traction in mud, sand, rocks, and snow
  • Surprisingly quiet on the highway for a mud-terrain tire
  • Aggressive and appealing visual design, including popular red lettering

Cons

  • Initial high-speed handling instability or 'squirminess' reported by some drivers
  • Prone to throwing rocks and debris, potentially chipping paint
  • Occasional reports of rapid or uneven tread wear and cupping
All owner themes in the Grabber X3 review

Specs side by side

Attribute A · Cooper Discoverer A/T3 Sport B · General Grabber X3
CategoryAll Terrain and Off Road All Season tireMud-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available—6
Rim diameters—16″ – 18″
Tread depth—18 - 21/32″
UTQG—AA A
Sidewall—Black Side Wall - Serrated Raised Lettering
Max pressure—35 - 80 psi

Which one should you actually buy?

Cooper Discoverer A/T3 Sport

General Grabber X3

Winner: Cooper Discoverer A/T3 Sport — better handling, comfort and dry. It leads or ties in every category we score. Cooper Discoverer A/T3 Sport rests on little evidence so far (0 tests, 4 reviews), so read this result as provisional.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer A/T3 Sport scores 76 vs 58 on handling.

Pick tire A You want the most comfortable ride

Cooper Discoverer A/T3 Sport scores 74 vs 64 on comfort.

Pick tire A You want the most grip on dry roads

Cooper Discoverer A/T3 Sport scores 75 vs 70 on dry.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer A/T3 Sport scores 75 vs 71 on wet.

Tire A · Cooper Discoverer A/T3 Sport
Check price on Amazon
Tire B · General Grabber X3
Check price on Amazon

TireWheelGuide may earn a commission from purchases made through these links.

Discoverer A/T3 Sport or Grabber X3?

Which is better in the wet, Discoverer A/T3 Sport or Grabber X3?

Cooper Discoverer A/T3 Sport, 75 vs 71 on our wet score.

Which grips better on dry roads, Discoverer A/T3 Sport or Grabber X3?

Cooper Discoverer A/T3 Sport, 75 vs 70 on our dry score.

Which is better in snow, Discoverer A/T3 Sport or Grabber X3?

Neither, by our numbers: 70 vs 70 on the snow score, within 3 points.

Which is more comfortable, Discoverer A/T3 Sport or Grabber X3?

Cooper Discoverer A/T3 Sport, 74 vs 64 on our comfort score.

Which lasts longer, Discoverer A/T3 Sport or Grabber X3?

Cooper Discoverer A/T3 Sport, 68 vs 65 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