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Cooper Discoverer H/T Plus 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 34 + 119 owner reviews. How we score

Grabber X3 is ahead, 68–62

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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. 66

    Dry

    Grabber X3 +4
    70
    Why this score
    SourceDiscoverer H/T PlusGrabber X3
    Professional tests (TWG score)≈ 67 (est.)≈ 69 (est.)
    Reviews found online6671

    Discoverer H/T Plus: 60% × 66.9 (est.) + 40% × 65.6 = 66

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

    No road tests of dry for Discoverer H/T Plus. 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. 63

    Wet

    Grabber X3 +8
    71
    Why this score
    SourceDiscoverer H/T PlusGrabber X3
    Professional tests (TWG score)≈ 64 (est.)≈ 70 (est.)
    Reviews found online6071

    Discoverer H/T Plus: 60% × 64.3 (est.) + 40% × 59.9 = 63

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

    No road tests of wet for Discoverer H/T Plus. 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. 57

    Snow

    Grabber X3 +13
    70
    Why this score
    SourceDiscoverer H/T PlusGrabber X3
    Professional tests (TWG score)≈ 63 (est.)≈ 70 (est.)
    Reviews found online4870

    Discoverer H/T Plus: 60% × 62.7 (est.) + 40% × 48.1 = 57

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

    No road tests of snow for Discoverer H/T Plus. 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. 66

    Comfort

    Discoverer H/T Plus +2
    64
    Why this score
    SourceDiscoverer H/T PlusGrabber X3
    Professional tests (TWG score)≈ 68 (est.)≈ 67 (est.)
    Reviews found online6358

    Discoverer H/T Plus: 60% × 68.1 (est.) + 40% × 63 = 66

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

    No road tests of comfort for Discoverer H/T Plus or Grabber X3. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 66

    Noise

    Discoverer H/T Plus +5
    61
    Why this score
    SourceDiscoverer H/T PlusGrabber X3
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online6552

    Discoverer H/T Plus: 60% × 67.3 (est.) + 40% × 65.1 = 66

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

    No road tests of noise for Discoverer H/T Plus or Grabber X3. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 55

    Treadwear

    Grabber X3 +10
    65
    Why this score
    SourceDiscoverer H/T PlusGrabber X3
    Professional tests (TWG score)≈ 60 (est.)≈ 66 (est.)
    Reviews found online4765

    Discoverer H/T Plus: 60% × 60 (est.) + 40% × 47.2 = 55

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

    No road tests of treadwear for Discoverer H/T Plus. 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. 59

    Handling (owners)

    Discoverer H/T Plus +1
    58
    Why this score
    SourceDiscoverer H/T PlusGrabber X3
    Reviews found online5958
Scores at a glance
CategoryCooper Discoverer H/T PlusGeneral Grabber X3
Relative Score 62 68
Dry 66 70
Wet 63 71
Snow 57 70
Comfort 66 64
Noise 66 61
Treadwear 55 65
Handling (owners) 59 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.

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Neutral
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Neutral
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Recomputed
Headline score

Discoverer H/T Plus

Grabber X3

Pros, cons & observations

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

Tire A Discoverer H/T Plus

Pros

  • Smooth and quiet highway ride quality
  • Strong wet and dry traction, including dependable performance in rain
  • Attractive and somewhat aggressive tread design that enhances truck appearance

Cons

  • Rapid tread wear reported by some users, failing to meet expected mileage warranties
  • Slight decrease in fuel economy noted by a few drivers
  • Occasional minor increase in road noise compared to previous tires on specific setups
All owner themes in the Discoverer H/T Plus 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 H/T Plus B · General Grabber X3
CategoryAll-Season tireMud-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available26
Rim diameters18″ – 20″16″ – 18″
Tread depth12/32″18 - 21/32″
UTQG460 A BAA A
SidewallBlackwallBlack Side Wall - Serrated Raised Lettering
Max pressure50 psi35 - 80 psi

Which one should you actually buy?

Cooper Discoverer H/T Plus

General Grabber X3

Winner: General Grabber X3 — better snow, treadwear and wet. Pick the Cooper Discoverer H/T Plus if noise matters most to you.

Pick tire B You drive through snowy winters

General Grabber X3 scores 70 vs 57 on snow.

Pick tire B You want the longest tread life

General Grabber X3 scores 65 vs 55 on treadwear.

Pick tire B Your priority is wet-weather safety

General Grabber X3 scores 71 vs 63 on wet.

Pick tire A You want a quieter cabin

Cooper Discoverer H/T Plus scores 66 vs 61 on noise.

Tire A · Cooper Discoverer H/T Plus
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Tire B · General Grabber X3
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Discoverer H/T Plus or Grabber X3?

Which is better in the wet, Discoverer H/T Plus or Grabber X3?

General Grabber X3, 71 vs 63 on our wet score.

Which grips better on dry roads, Discoverer H/T Plus or Grabber X3?

General Grabber X3, 70 vs 66 on our dry score.

Which is better in snow, Discoverer H/T Plus or Grabber X3?

General Grabber X3, 70 vs 57 on our snow score.

Which is quieter, Discoverer H/T Plus or Grabber X3?

Cooper Discoverer H/T Plus, 66 vs 61 on our noise score.

Which is more comfortable, Discoverer H/T Plus or Grabber X3?

Neither, by our numbers: 66 vs 64 on the comfort score, within 3 points.

Which lasts longer, Discoverer H/T Plus or Grabber X3?

General Grabber X3, 65 vs 55 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