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Head-to-head

Bridgestone Dueler H/T D840 vs Dunlop Grandtrek AT20 — Compared

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

Check price on Amazon · Dueler H/T D840 Check price on Amazon · Grandtrek AT20
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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. –

    Dry

    No comparison
    43
    Why this score
    SourceDueler H/T D840Grandtrek AT20
    Reviews found online–29
  2. –

    Wet

    No comparison
    43
    Why this score
    SourceDueler H/T D840Grandtrek AT20
    Reviews found online–33
  3. –

    Snow

    No comparison
    49
    Why this score
    SourceDueler H/T D840Grandtrek AT20
    Reviews found online–35
  4. –

    Comfort

    No comparison
    51
    Why this score
    SourceDueler H/T D840Grandtrek AT20
    Reviews found online–34
  5. –

    Noise

    No comparison
    55
    Why this score
    SourceDueler H/T D840Grandtrek AT20
    Reviews found online–40
  6. –

    Treadwear

    No comparison
    52
    Why this score
    SourceDueler H/T D840Grandtrek AT20
    Reviews found online–42
  7. –

    Handling

    No comparison
    35
    Why this score
    SourceDueler H/T D840Grandtrek AT20
    Reviews found online–35
Scores at a glance
CategoryBridgestone Dueler H/T D840Dunlop Grandtrek AT20
Relative Score – 46
Dry – 43
Wet – 43
Snow – 49
Comfort – 51
Noise – 55
Treadwear – 52
Handling – 35

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

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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Neutral
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Less important
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Less important
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Important
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Neutral
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Recomputed
Headline score

Dueler H/T D840

Grandtrek AT20

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 Dueler H/T D840

Not enough owner reviews yet to extract themes.

Tire B Grandtrek AT20

Pros

  • Exceptional tread life and high mileage capability (often exceeding 40,000 to 60,000+ miles)
  • Comfortable, smooth, and quiet ride on tarmac and highways
  • Good stability and predictable handling in dry, warm weather conditions

Cons

  • Extremely poor and potentially unsafe traction on wet roads, leading to sliding and long braking distances
  • Unreliable or hazardous performance in winter conditions like snow and ice
  • Subpar off-road capabilities, including low puncture resistance on gravel and poor traction in mud or sand
All owner themes in the Grandtrek AT20 review

Specs side by side

Attribute A · Bridgestone Dueler H/T D840 B · Dunlop Grandtrek AT20
Vehicle typeSUV and 4x4SUV and 4x4
Sidewall—Blackwall

Which one should you actually buy?

Bridgestone Dueler H/T D840

Dunlop Grandtrek AT20

Only Dunlop Grandtrek AT20 has enough test and review data for a Relative Score, so there is no head-to-head winner yet.

Tire A · Bridgestone Dueler H/T D840
Check price on Amazon
Tire B · Dunlop Grandtrek AT20
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.