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Head-to-head Updated

Firestone Transforce AT2 vs Cooper Discoverer AT3 XLT — 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 + 0 road tests and 17 + 800 owner reviews. How we score

Discoverer AT3 XLT is ahead, 77–70

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Cooper Discoverer AT3 XLT
Tire BCooper

Discoverer AT3 XLT

All-Terrain tire

± 7

Tests – · none yet Owners 82 · 800 reviews

“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”

Category by category

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

  1. 69

    Dry

    Discoverer AT3 XLT +10
    79
    Why this score
    SourceTransforce AT2Discoverer AT3 XLT
    Professional tests (TWG score)≈ 69 (est.)≈ 75 (est.)
    Reviews found online6985

    Transforce AT2: 60% × 68.5 (est.) + 40% × 69.4 = 69

    Discoverer AT3 XLT: 60% × 75.1 (est.) + 40% × 85.3 = 79

    No road tests of dry for Transforce AT2. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

    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).

  2. 72

    Wet

    Discoverer AT3 XLT +11
    83
    Why this score
    SourceTransforce AT2Discoverer AT3 XLT
    Professional tests (TWG score)≈ 71 (est.)≈ 80 (est.)
    Reviews found online7287

    Transforce AT2: 60% × 71.3 (est.) + 40% × 71.8 = 72

    Discoverer AT3 XLT: 60% × 79.7 (est.) + 40% × 87.2 = 83

    No road tests of wet for Transforce AT2. 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 Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 72

    Snow

    Transforce AT2 +1
    71
    Why this score
    SourceTransforce AT2Discoverer AT3 XLT
    Professional tests (TWG score)≈ 71 (est.)≈ 71 (est.)
    Reviews found online7372

    Transforce AT2: 60% × 71.2 (est.) + 40% × 72.6 = 72

    Discoverer AT3 XLT: 60% × 70.9 (est.) + 40% × 71.7 = 71

    No road tests of snow for Transforce AT2. 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 Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 59

    Comfort

    Discoverer AT3 XLT +18
    77
    Why this score
    SourceTransforce AT2Discoverer AT3 XLT
    Professional tests (TWG score)≈ 66 (est.)≈ 71 (est.)
    Reviews found online5480

    Transforce AT2: 40% × 65.8 (est.) + 60% × 54.3 = 59

    Discoverer AT3 XLT: 40% × 71 (est.) + 60% × 80.3 = 77

    No road tests of comfort for Transforce AT2. 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 Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. 69

    Noise

    Discoverer AT3 XLT +4
    73
    Why this score
    SourceTransforce AT2Discoverer AT3 XLT
    Professional tests (TWG score)≈ 66 (est.)≈ 66 (est.)
    Reviews found online7482

    Transforce AT2: 60% × 66.4 (est.) + 40% × 73.5 = 69

    Discoverer AT3 XLT: 60% × 66.4 (est.) + 40% × 82.4 = 73

    No road tests of noise for Transforce AT2 or Discoverer AT3 XLT. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 71

    Treadwear

    Discoverer AT3 XLT +3
    74
    Why this score
    SourceTransforce AT2Discoverer AT3 XLT
    Professional tests (TWG score)≈ 69 (est.)≈ 71 (est.)
    Reviews found online7479

    Transforce AT2: 60% × 69.3 (est.) + 40% × 74.2 = 71

    Discoverer AT3 XLT: 60% × 71.2 (est.) + 40% × 79.4 = 74

    No road tests of treadwear for Transforce AT2. 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 Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. –

    Handling (owners)

    No comparison
    78
    Why this score
    SourceTransforce AT2Discoverer AT3 XLT
    Reviews found online–78
Scores at a glance
CategoryFirestone Transforce AT2Cooper Discoverer AT3 XLT
Relative Score 70 77
Dry 69 79
Wet 72 83
Snow 72 71
Comfort 59 77
Noise 69 73
Treadwear 71 74
Handling (owners) – 78

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

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

Recomputed
Headline score
± 8

Transforce AT2

± 7

Discoverer AT3 XLT

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 Transforce AT2

Pros

  • Excellent value and competitive price point for a commercial line tire
  • Quiet on-road operation despite the deep, aggressive tread design
  • Reliable durability and high mileage potential based on long-term user history

Cons

  • Prone to highway wandering and tracking grooves or ridges in the road
  • Difficulty in achieving proper road balance, causing high-speed vibrations
  • Unstable or 'floaty' feel at highway speeds for specific heavy-duty applications
All owner themes in the Transforce AT2 review

Tire B 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

What real owners are saying

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

Tire A

Firestone Transforce AT2

We haven't collected enough community discussion about this tire yet.

Tire B

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/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

Specs side by side

Attribute A · Firestone Transforce AT2 B · Cooper Discoverer AT3 XLT
CategoryAll-Terrain tireAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available174
Rim diameters16″ – 20″16″ – 20″
Tread depth32/32″16 - 18/32″
Treadwear warranty—60,000 mi
SidewallOutlined White LetteringBlack Side Wall - Raised White Lettering
Max pressure80 psi35 - 80 psi
Sizes in common11

Which one should you actually buy?

Firestone Transforce AT2

Cooper Discoverer AT3 XLT

Winner: Cooper Discoverer AT3 XLT — better comfort, wet and dry. Where the Firestone Transforce AT2 is ahead, it is by less than 3 points. Firestone Transforce AT2 rests on little evidence so far (0 tests, 17 reviews), so read this result as provisional.

Pick tire B You want the most comfortable ride

Cooper Discoverer AT3 XLT scores 77 vs 59 on comfort.

Pick tire B Your priority is wet-weather safety

Cooper Discoverer AT3 XLT scores 83 vs 72 on wet.

Pick tire B You want the most grip on dry roads

Cooper Discoverer AT3 XLT scores 79 vs 69 on dry.

Pick tire B You want a quieter cabin

Cooper Discoverer AT3 XLT scores 73 vs 69 on noise.

Tire A · Firestone Transforce AT2
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Tire B · Cooper Discoverer AT3 XLT
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Transforce AT2 or Discoverer AT3 XLT?

Which is better in the wet, Transforce AT2 or Discoverer AT3 XLT?

Cooper Discoverer AT3 XLT, 83 vs 72 on our wet score.

Which grips better on dry roads, Transforce AT2 or Discoverer AT3 XLT?

Cooper Discoverer AT3 XLT, 79 vs 69 on our dry score.

Which is better in snow, Transforce AT2 or Discoverer AT3 XLT?

Neither, by our numbers: 72 vs 71 on the snow score, within 3 points.

Which is quieter, Transforce AT2 or Discoverer AT3 XLT?

Cooper Discoverer AT3 XLT, 73 vs 69 on our noise score.

Which is more comfortable, Transforce AT2 or Discoverer AT3 XLT?

Cooper Discoverer AT3 XLT, 77 vs 59 on our comfort score.

Which lasts longer, Transforce AT2 or Discoverer AT3 XLT?

Cooper Discoverer AT3 XLT, 74 vs 71 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