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Head-to-head Updated

Dunlop Grandtrek ST30 vs Dunlop Grandtrek ST20 — Compared

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

Grandtrek ST20 is ahead, 69–52

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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. 53

    Dry

    Grandtrek ST20 +15
    68
    Why this score
    SourceGrandtrek ST30Grandtrek ST20
    Reviews found online4568
  2. 54

    Wet

    Grandtrek ST20 +17
    71
    Why this score
    SourceGrandtrek ST30Grandtrek ST20
    Reviews found online4872
  3. 54

    Snow

    No comparison
    –
    Why this score
    SourceGrandtrek ST30Grandtrek ST20
    Reviews found online44–
  4. 55

    Comfort

    Grandtrek ST20 +13
    68
    Why this score
    SourceGrandtrek ST30Grandtrek ST20
    Reviews found online4268
  5. 54

    Noise

    No comparison
    –
    Why this score
    SourceGrandtrek ST30Grandtrek ST20
    Reviews found online34–
  6. 51

    Treadwear

    Grandtrek ST20 +17
    68
    Why this score
    SourceGrandtrek ST30Grandtrek ST20
    Reviews found online4269
  7. 46

    Handling

    Grandtrek ST20 +24
    70
    Why this score
    SourceGrandtrek ST30Grandtrek ST20
    Reviews found online4670
Scores at a glance
CategoryDunlop Grandtrek ST30Dunlop Grandtrek ST20
Relative Score 52 69
Dry 53 68
Wet 54 71
Snow 54 –
Comfort 55 68
Noise 54 –
Treadwear 51 68
Handling 46 70

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.

Important
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Important
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Neutral
NoneLessNeutralMoreMost

Neither tire has a score here yet, so this weight changes nothing.

Less important
NoneLessNeutralMoreMost
Less important
NoneLessNeutralMoreMost

Neither tire has a score here yet, so this weight changes nothing.

Important
NoneLessNeutralMoreMost
Neutral
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Recomputed
Headline score

Grandtrek ST30

Grandtrek ST20

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 Grandtrek ST30

Pros

  • Strong dry-pavement grip and straight-line stability
  • Competitive price point and value for money
  • High mileage potential for some drivers

Cons

  • Poor wet-weather performance and susceptibility to aquaplaning
  • High levels of road noise on various surfaces
  • Inconsistent tread life, with reports of rapid wear
All owner themes in the Grandtrek ST30 review

Tire B Grandtrek ST20

Pros

  • Impressive tread life and overall durability
  • Consistent and predictable handling in mixed weather conditions
  • Strong performance for light off-road and towing applications

Cons

  • Noticeable reduction in wet grip at lower tread depths (below 3mm)
  • Tendency for sidewalls to develop cracks or crazing over time
  • Increased road noise on rough or concrete surfaces
All owner themes in the Grandtrek ST20 review

Specs side by side

Attribute A · Dunlop Grandtrek ST30 B · Dunlop Grandtrek ST20
CategoryAll SeasonAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available53
Rim diameters17″ – 19″16″ – 17″
Tread depth10/32″—
UTQG360 A A—
SidewallBlackwall—
Max pressure51 psi—

Which one should you actually buy?

Dunlop Grandtrek ST30

Dunlop Grandtrek ST20

Winner: Dunlop Grandtrek ST20 — better handling, wet and treadwear. It leads or ties in every category we score.

Pick tire B You enjoy sharp, responsive handling

Dunlop Grandtrek ST20 scores 70 vs 46 on handling.

Pick tire B Your priority is wet-weather safety

Dunlop Grandtrek ST20 scores 71 vs 54 on wet.

Pick tire B You want the longest tread life

Dunlop Grandtrek ST20 scores 68 vs 51 on treadwear.

Pick tire B You want the most grip on dry roads

Dunlop Grandtrek ST20 scores 68 vs 53 on dry.

Tire A · Dunlop Grandtrek ST30
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Tire B · Dunlop Grandtrek ST20
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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.

69

Leads

Grandtrek ST20

Amazon