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Head-to-head Updated May 2026

Bridgestone Dueler H/T D840 vs Dunlop Grandtrek AT20 — Compared (May 2026)

Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.

VS
Tire B Dunlop

Dunlop Grandtrek AT20

Dunlop Grandtrek AT20 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
52/100
35 owner reviews
Dry
73
Wet
52
Snow
24
Comfort
69
Noise
–
Treadwear
68
Handling
64
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VerdictWinner: Bridgestone Dueler H/T D840 — better snow, wet and comfort. Pick the Dunlop Grandtrek AT20 if treadwear matters most to you.
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Category breakdown

7 categories, side by side

Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.

Dry

Weight: Neutral
Score (0–100) Grandtrek AT20 leads by 2
A
71
B
73
Why this score
SourceDueler H/T D840Grandtrek AT20
Tire Rack owners 62 50
Tyre Reviews owners – 73
SimpleTire owners – 89

Wet

Weight: Important
Score (0–100) Dueler H/T D840 leads by 10
A
62
B
52
Why this score
SourceDueler H/T D840Grandtrek AT20
Tire Rack owners 44 50
Tyre Reviews owners – 52
SimpleTire owners – 85

Snow

Weight: Neutral
Score (0–100) Dueler H/T D840 leads by 26
A
50
B
24
Why this score
SourceDueler H/T D840Grandtrek AT20
Tire Rack owners 71 62
Tyre Reviews owners – 23
SimpleTire owners – 82

Comfort

Weight: Neutral
Score (0–100) Dueler H/T D840 leads by 8
A
77
B
69
Why this score
SourceDueler H/T D840Grandtrek AT20
Tire Rack owners 49 38
Tyre Reviews owners – 69
SimpleTire owners – 87

Noise

Weight: Neutral
Score (0–100)
A
76
B
–
Why this score
SourceDueler H/T D840Grandtrek AT20
SimpleTire owners – 83

Treadwear

Weight: Important
Score (0–100) Grandtrek AT20 leads by 4
A
64
B
68
Why this score
SourceDueler H/T D840Grandtrek AT20
Tire Rack owners 78 69
Tyre Reviews owners – 68
SimpleTire owners – 83

Handling

Weight: Neutral
Score (0–100) Dueler H/T D840 leads by 5
A
69
B
64
Why this score
SourceDueler H/T D840Grandtrek AT20
Tyre Reviews owners – 64

Scores at a glance

CategoryBridgestone Dueler H/T D840Dunlop Grandtrek AT20
Relative Score 65 59
Dry 71 73
Wet 62 52
Snow 50 24
Comfort 77 69
Noise 76 –
Treadwear 64 68
Handling 69 64

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

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Weight the categories that matter to you

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

Tire A

Tire B

Only categories both tires have data for count toward the headline score.

From owners

Pros, cons & observations

Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.

Tire A Bridgestone Dueler H/T D840

Not enough owner reviews yet to extract themes.

Tire B Dunlop Grandtrek AT20

The Dunlop Grandtrek A/T20 is a polarizing tire that is frequently criticized for its poor wet-weather performance and limited off-road capability, despite being a common original equipment choice for various 4x4s. While a significant portion of users report exceptional tread longevity and acceptable dry-road comfort, many owners find the lack of confidence in rain and snow to be a safety concern that outweighs the tire's durability.

Pros

  • Exceptional tread life and high mileage durability
  • Quiet and comfortable ride on paved surfaces
  • Reliable performance in dry, warm weather conditions
  • Consistent availability as a factory-fitted original equipment tire

Cons

  • Dangerous handling and poor traction on wet roads
  • Inadequate performance in snow, ice, and mud
  • Susceptibility to shoulder wear and uneven tread degradation
  • Limited off-road durability and puncture resistance

Observations

  • Owners of heavy 4x4s like the Toyota Land Cruiser and Mitsubishi Shogun frequently report that the tire's performance does not match the vehicle's off-road capabilities.
  • Some users noted that adjusting tire pressure slightly above factory recommendations can help mitigate uneven shoulder wear, though this remains a recurring complaint across various models.
Specifications

Specs side by side

Attribute A · Bridgestone Dueler H/T D840 B · Dunlop Grandtrek AT20
Sidewall—Blackwall
Final verdict

Which one should you actually buy?

Bridgestone

Dunlop

Winner: Bridgestone Dueler H/T D840 — better snow, wet and comfort. Pick the Dunlop Grandtrek AT20 if treadwear matters most to you.

Pick tire A You drive through snowy winters

Bridgestone Dueler H/T D840 scores 50 vs 24 on snow.

Pick tire A Your priority is wet-weather safety

Bridgestone Dueler H/T D840 scores 62 vs 52 on wet.

Pick tire A You want the most comfortable ride

Bridgestone Dueler H/T D840 scores 77 vs 69 on comfort.

Pick tire A You enjoy sharp, responsive handling

Bridgestone Dueler H/T D840 scores 69 vs 64 on handling.

Tire A · Bridgestone Dueler H/T D840
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Tire B · Dunlop Grandtrek AT20
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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) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.

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