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Cooper Discoverer AT3 LT vs Firestone Transforce AT2 — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Discoverer AT3 LT is ahead, 74–65

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Category by category

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

  1. 77

    Dry

    Discoverer AT3 LT +13
    64
    Why this score
    SourceDiscoverer AT3 LTTransforce AT2
    Reviews found online8362
  2. 79

    Wet

    Discoverer AT3 LT +12
    67
    Why this score
    SourceDiscoverer AT3 LTTransforce AT2
    Reviews found online8266
  3. 71

    Snow

    Discoverer AT3 LT +4
    67
    Why this score
    SourceDiscoverer AT3 LTTransforce AT2
    Reviews found online7265
  4. 72

    Comfort

    Discoverer AT3 LT +12
    60
    Why this score
    SourceDiscoverer AT3 LTTransforce AT2
    Reviews found online7550
  5. 71

    Noise

    Discoverer AT3 LT +4
    67
    Why this score
    SourceDiscoverer AT3 LTTransforce AT2
    Reviews found online7868
  6. 71

    Treadwear

    Discoverer AT3 LT +4
    67
    Why this score
    SourceDiscoverer AT3 LTTransforce AT2
    Reviews found online7467
  7. 70

    Handling

    Discoverer AT3 LT +12
    58
    Why this score
    SourceDiscoverer AT3 LTTransforce AT2
    Reviews found online7058
Scores at a glance
CategoryCooper Discoverer AT3 LTFirestone Transforce AT2
Relative Score 74 65
Dry 77 64
Wet 79 67
Snow 71 67
Comfort 72 60
Noise 71 67
Treadwear 71 67
Handling 70 58

Higher is better. The Relative Score follows your weights below; category scores do not change.

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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

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Recomputed
Headline score

Discoverer AT3 LT

Transforce AT2

Pros, cons & observations

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

Tire A Discoverer AT3 LT

Pros

  • Excellent towing stability with minimal sidewall flex under heavy loads
  • Surprisingly quiet and smooth on the highway for an all-terrain tire
  • Strong durability and wear resistance on rough gravel, rock, and dirt roads

Cons

  • Subpar performance in heavy snow, ice, or deep mud for some users
  • Occasional reports of balancing difficulties or initial cold-weather tire thumping
  • Isolated incidents of sidewall splitting or premature wear
All owner themes in the Discoverer AT3 LT review

Tire B Transforce AT2

Not enough owner reviews yet to extract themes.

Specs side by side

Attribute A · Cooper Discoverer AT3 LT B · Firestone Transforce AT2
CategoryPremium Touring All Season tire—
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available1417
Rim diameters16″ – 18″16″ – 20″
Tread depth16 - 17/32″32/32″
Treadwear warranty60,000 mi—
SidewallBlack Side Wall - Raised Outline White LetteringOutlined White Lettering
Max pressure50 - 80 psi80 psi

Which one should you actually buy?

Cooper Discoverer AT3 LT

Firestone Transforce AT2

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

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 LT scores 77 vs 64 on dry.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 LT scores 79 vs 67 on wet.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 LT scores 72 vs 60 on comfort.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 LT scores 70 vs 58 on handling.

Tire A · Cooper Discoverer AT3 LT
Check price on Amazon
Tire B · Firestone Transforce AT2
Check price on Amazon

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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.

Community buzz from Reddit and forums is shown for context only — it never changes the score.

74

Leads

Discoverer AT3 LT

Amazon