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Cooper Discoverer Stronghold AT vs Bridgestone Dueler A/T Ascent — 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 + 1 road tests and 7 + 7 owner reviews. How we score

Dueler A/T Ascent is ahead, 74–65

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Cooper Discoverer Stronghold AT
Tire ACooper

Discoverer Stronghold AT

All-Terrain tire

± 8Provisional

Tests 62 · 1 test Owners 67 · 7 reviews

Best test result: #1 of 30 in 2026 Tire Rack All Terrain Tyre Snow Test (snow handling (tester's mark))

Bridgestone Dueler A/T Ascent
Tire BBridgestone

Dueler A/T Ascent

All-Terrain tire

± 7Provisional

Tests 74 · 1 test Owners 75 · 7 reviews

Best test result: #1 of 30 in 2026 Tire Rack All Terrain Tyre Snow Test (snow braking)

Category by category

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

  1. 62

    Dry

    Dueler A/T Ascent +8
    70
    Why this score
    SourceDiscoverer Stronghold ATDueler A/T Ascent
    Professional tests (TWG score) · 1 / 1 tests6066
    Reviews found online6575
    Dry Braking (% of best) · 1 shared test · wins 0–191%92%
    Dry Circle (% of best) · 1 shared test · wins 0–195%96%

    Discoverer Stronghold AT: 60% × 59.7 + 40% × 65.2 = 62

    Dueler A/T Ascent: 60% × 66 + 40% × 74.9 = 70

  2. 65

    Wet

    Dueler A/T Ascent +11
    76
    Why this score
    SourceDiscoverer Stronghold ATDueler A/T Ascent
    Professional tests (TWG score) · 1 / 1 tests6277
    Reviews found online7075
    Wet Braking (% of best) · 1 shared test · wins 0–188%95%
    Wet Circle (% of best) · 1 shared test · wins 0–187%95%
    Wet Handling (% of best) · 1 shared test · wins 0–191%95%

    Discoverer Stronghold AT: 60% × 62.2 + 40% × 70.3 = 65

    Dueler A/T Ascent: 60% × 76.8 + 40% × 75.3 = 76

  3. 71

    Snow

    Dueler A/T Ascent +9
    80
    Why this score
    SourceDiscoverer Stronghold ATDueler A/T Ascent
    Professional tests (TWG score) · 1 / 1 tests7784
    Reviews found online6273
    Ice Braking (% of best) · 1 shared test · wins 0–177%100%
    Ice Traction (% of best) · 1 shared test · wins 0–194%98%
    Snow Braking (% of best) · 1 shared test · wins 0–194%100%
    Snow Handling (% of best) · 1 shared test · wins 0–198%100%
    Snow Traction (% of best) · 1 shared test · wins 0–177%100%
    Snow Handling (tester's mark) (% of best) · 1 shared test · wins 1–0100%94%

    Discoverer Stronghold AT: 60% × 77.4 + 40% × 62.1 = 71

    Dueler A/T Ascent: 60% × 84.4 + 40% × 73 = 80

  4. 56

    Comfort

    Dueler A/T Ascent +15
    71
    Why this score
    SourceDiscoverer Stronghold ATDueler A/T Ascent
    Professional tests (TWG score) · 1 / 1 tests4971
    Reviews found online6171
    Comfort (tester's mark) (% of best) · 1 shared test · wins 0–173%87%

    Discoverer Stronghold AT: 40% × 48.6 + 60% × 60.8 = 56

    Dueler A/T Ascent: 40% × 70.7 + 60% × 71.2 = 71

  5. 57

    Noise

    Dueler A/T Ascent +15
    72
    Why this score
    SourceDiscoverer Stronghold ATDueler A/T Ascent
    Professional tests (TWG score) · 1 / 1 tests5574
    Reviews found online6071
    Noise (tester's mark) (% of best) · 1 shared test · wins 0–170%90%

    Discoverer Stronghold AT: 60% × 55.1 + 40% × 59.7 = 57

    Dueler A/T Ascent: 60% × 73.6 + 40% × 70.5 = 72

  6. 70

    Treadwear

    Dueler A/T Ascent +5
    75
    Why this score
    SourceDiscoverer Stronghold ATDueler A/T Ascent
    Professional tests (TWG score)≈ 69 (est.)≈ 71 (est.)
    Reviews found online7280

    Discoverer Stronghold AT: 60% × 68.6 (est.) + 40% × 72.2 = 70

    Dueler A/T Ascent: 60% × 71.3 (est.) + 40% × 79.8 = 75

    No road tests of treadwear for Discoverer Stronghold AT. 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 Dueler A/T Ascent. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 71

    Handling (owners)

    Dueler A/T Ascent +5
    76
    Why this score
    SourceDiscoverer Stronghold ATDueler A/T Ascent
    Reviews found online7176
Scores at a glance
CategoryCooper Discoverer Stronghold ATBridgestone Dueler A/T Ascent
Relative Score 65 74
Dry 62 70
Wet 65 76
Snow 71 80
Comfort 56 71
Noise 57 72
Treadwear 70 75
Handling (owners) 71 76

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
Recomputed
Headline score
± 8

Discoverer Stronghold AT

± 7

Dueler A/T Ascent

The professional test results behind the scores

Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.

In the overall rankings of 2 tests that ran both, Cooper Discoverer Stronghold AT finished ahead 1 times and Bridgestone Dueler A/T Ascent 1 times.

DisciplineCategoryDiscoverer Stronghold ATDueler A/T AscentΔHead-to-head
Dry Braking Dry 91% 92% −1.4 0–1 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Dry Circle Dry 95% 96% −1.3 0–1 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Wet Braking Wet 88% 95% −6.8 0–1 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Wet Circle Wet 87% 95% −8.2 0–1 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Wet Handling Wet 91% 95% −3.9 0–1 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Ice Braking Snow 77% 100% −22.6 0–1 in 1 shared test Newest: 2026 Tire Rack All Terrain Tyre Snow Test · 265/70 R17
Ice Traction Snow 94% 98% −4.7 0–1 in 1 shared test Newest: 2026 Tire Rack All Terrain Tyre Snow Test · 265/70 R17
Snow Braking Snow 94% 100% −6.4 0–1 in 1 shared test Newest: 2026 Tire Rack All Terrain Tyre Snow Test · 265/70 R17
Snow Handling Snow 98% 100% −2.4 0–1 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Snow Handling (tester's mark) Snow 100% 94% +6.0 1–0 in 1 shared test Newest: 2026 Tire Rack All Terrain Tyre Snow Test · 265/70 R17
Snow Traction Snow 77% 100% −22.6 0–1 in 1 shared test Newest: 2026 Tire Rack All Terrain Tyre Snow Test · 265/70 R17
Comfort (tester's mark) Comfort 73% 87% −13.4 0–1 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Noise (tester's mark) Noise 70% 90% −20.0 0–1 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Also published by the testers (not in the score)
Road Rating (tester's mark) Other 97% 93% +3.4 1–0 in 1 shared test Newest: 2024 Tire Rack All Terrain Tyres On-Road Test · 265/70 R17
Overall Ranking Overall #1/30 #3/30 – 1–1 in 2 shared tests Newest: 2026 Tire Rack All Terrain Tyre Snow Test · 265/70 R17

Pros, cons & observations

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

Tire A Discoverer Stronghold AT

Pros

  • Exceptional traction in snow, ice, and winter conditions
  • Great capability for heavy-duty towing and plowing
  • Affordable pricing compared to premium alternatives like Nitto

Cons

  • Noticeable road noise at higher speeds for some users
  • Occasional reports of steering wander compared to older models like the AT3 XLT
All owner themes in the Discoverer Stronghold AT review

Tire B Dueler A/T Ascent

Pros

  • Remarkably quiet and smooth ride quality comparable to highway tires
  • Fantastic traction and handling in wet conditions
  • Reliable performance for daily commuting, towing, and mild off-roading (sand and gravel)

Cons

  • Subpar performance and traction on ice
  • Mud-clearing issues leading to a lack of traction in muddy environments
  • Occasional wheel slip when starting from a stop on wet roads
All owner themes in the Dueler A/T Ascent review

Specs side by side

Attribute A · Cooper Discoverer Stronghold AT B · Bridgestone Dueler A/T Ascent
CategoryAll-Terrain tireAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available2731
Rim diameters16″ – 20″17″ – 22″
Tread depth16 - 17/32″12/32″
UTQG—640 A B
Treadwear warranty60,000 mi60,000 mi
SidewallBlack Side Wall - Raised White LetteringBlackwall
Max pressure65 - 80 psi44 psi
Sizes in common1616

Which one should you actually buy?

Cooper Discoverer Stronghold AT

Bridgestone Dueler A/T Ascent

Winner: Bridgestone Dueler A/T Ascent — better comfort, noise and wet. It leads or ties in every category we score. Cooper Discoverer Stronghold AT rests on little evidence so far (1 test, 7 reviews), so read this result as provisional. Bridgestone Dueler A/T Ascent rests on little evidence so far (1 test, 7 reviews), so read this result as provisional.

Pick tire B You want the most comfortable ride

Bridgestone Dueler A/T Ascent scores 71 vs 56 on comfort.

Pick tire B You want a quieter cabin

Bridgestone Dueler A/T Ascent scores 72 vs 57 on noise.

Pick tire B Your priority is wet-weather safety

Bridgestone Dueler A/T Ascent scores 76 vs 65 on wet.

Pick tire B You drive through snowy winters

Bridgestone Dueler A/T Ascent scores 80 vs 71 on snow.

Tire A · Cooper Discoverer Stronghold AT
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Tire B · Bridgestone Dueler A/T Ascent
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Discoverer Stronghold AT or Dueler A/T Ascent?

Which is better in the wet, Discoverer Stronghold AT or Dueler A/T Ascent?

Bridgestone Dueler A/T Ascent, 76 vs 65 on our wet score.

Which grips better on dry roads, Discoverer Stronghold AT or Dueler A/T Ascent?

Bridgestone Dueler A/T Ascent, 70 vs 62 on our dry score.

Which is better in snow, Discoverer Stronghold AT or Dueler A/T Ascent?

Bridgestone Dueler A/T Ascent, 80 vs 71 on our snow score.

Which is quieter, Discoverer Stronghold AT or Dueler A/T Ascent?

Bridgestone Dueler A/T Ascent, 72 vs 57 on our noise score.

Which is more comfortable, Discoverer Stronghold AT or Dueler A/T Ascent?

Bridgestone Dueler A/T Ascent, 71 vs 56 on our comfort score.

Which lasts longer, Discoverer Stronghold AT or Dueler A/T Ascent?

Bridgestone Dueler A/T Ascent, 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