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Dunlop Grandtrek ST30 vs Kumho Crugen HT51 — 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 0 + 1 road tests and 27 + 164 owner reviews. How we score

Crugen HT51 is ahead, 72–50

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Kumho Crugen HT51
Tire BKumho

Crugen HT51

All Season

± 8

Tests – · 1 test Owners 76 · 164 reviews

Category by category

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

  1. 49

    Dry

    Crugen HT51 +25
    74
    Why this score
    SourceGrandtrek ST30Crugen HT51
    Professional tests (TWG score)≈ 56 (est.)≈ 72 (est.)
    Reviews found online3977

    Grandtrek ST30: 60% × 56 (est.) + 40% × 39.3 = 49

    Crugen HT51: 60% × 71.6 (est.) + 40% × 76.5 = 74

    No road tests of dry for Grandtrek ST30. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

    No road tests of dry for Crugen HT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 51

    Wet

    Crugen HT51 +25
    76
    Why this score
    SourceGrandtrek ST30Crugen HT51
    Professional tests (TWG score)≈ 56 (est.)≈ 75 (est.)
    Reviews found online4478

    Grandtrek ST30: 60% × 56 (est.) + 40% × 44 = 51

    Crugen HT51: 60% × 75 (est.) + 40% × 78.4 = 76

    No road tests of wet for Grandtrek ST30. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for Crugen HT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 54

    Snow

    Crugen HT51 +16
    70
    Why this score
    SourceGrandtrek ST30Crugen HT51
    Professional tests (TWG score)≈ 61 (est.)≈ 70 (est.)
    Reviews found online4470

    Grandtrek ST30: 60% × 60.7 (est.) + 40% × 43.8 = 54

    Crugen HT51: 60% × 70.5 (est.) + 40% × 70 = 70

    No road tests of snow for Grandtrek ST30. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

    No road tests of snow for Crugen HT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 47

    Comfort

    Crugen HT51 +23
    70
    Why this score
    SourceGrandtrek ST30Crugen HT51
    Professional tests (TWG score)≈ 63 (est.)≈ 69 (est.)
    Reviews found online3671

    Grandtrek ST30: 40% × 63 (est.) + 60% × 35.5 = 47

    Crugen HT51: 40% × 69.5 (est.) + 60% × 71.1 = 70

    No road tests of comfort for Grandtrek ST30 or Crugen HT51. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 52

    Noise

    Crugen HT51 +20
    72
    Why this score
    SourceGrandtrek ST30Crugen HT51
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online3079

    Grandtrek ST30: 60% × 66.6 (est.) + 40% × 30.3 = 52

    Crugen HT51: 60% × 66.6 (est.) + 40% × 79.4 = 72

    No road tests of noise for Grandtrek ST30 or Crugen HT51. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 47

    Treadwear

    Crugen HT51 +18
    65
    Why this score
    SourceGrandtrek ST30Crugen HT51
    Professional tests (TWG score) · – / 1 tests≈ 55 (est.)58
    Reviews found online3476

    Grandtrek ST30: 60% × 54.9 (est.) + 40% × 34.3 = 47

    Crugen HT51: 60% × 57.7 + 40% × 76.3 = 65

    No road tests of treadwear for Grandtrek ST30. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 42

    Handling (owners)

    Crugen HT51 +32
    74
    Why this score
    SourceGrandtrek ST30Crugen HT51
    Reviews found online4274
Scores at a glance
CategoryDunlop Grandtrek ST30Kumho Crugen HT51
Relative Score 50 72
Dry 49 74
Wet 51 76
Snow 54 70
Comfort 47 70
Noise 52 72
Treadwear 47 65
Handling (owners) 42 74

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
± 7

Grandtrek ST30

± 8

Crugen HT51

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 Crugen HT51

Pros

  • Exceptional value and lower price point compared to premium competitors
  • Smooth, quiet, and comfortable highway ride
  • Strong dry, wet, and winter/snow traction

Cons

  • Slightly vague or 'squishy' steering feel/sidewall stiffness compared to some OEM tires
  • Potential negative impact on fuel economy (decreased MPG for some truck owners)
  • Occasional reports of accelerated shoulder wear or balancing issues
All owner themes in the Crugen HT51 review

Specs side by side

Attribute A · Dunlop Grandtrek ST30 B · Kumho Crugen HT51
CategoryAll SeasonAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available544
Rim diameters17″ – 19″15″ – 22″
Tread depth10/32″12.5/32″
UTQG360 A A720 A A
Treadwear warranty—70,000 mi
SidewallBlackwallBlackwall
Max pressure51 psi50 psi
Sizes in common22

Which one should you actually buy?

Dunlop Grandtrek ST30

Kumho Crugen HT51

Winner: Kumho Crugen HT51 — better handling, dry and wet. It leads or ties in every category we score.

Pick tire B You enjoy sharp, responsive handling

Kumho Crugen HT51 scores 74 vs 42 on handling.

Pick tire B You want the most grip on dry roads

Kumho Crugen HT51 scores 74 vs 49 on dry.

Pick tire B Your priority is wet-weather safety

Kumho Crugen HT51 scores 76 vs 51 on wet.

Pick tire B You want the most comfortable ride

Kumho Crugen HT51 scores 70 vs 47 on comfort.

Tire A · Dunlop Grandtrek ST30
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Tire B · Kumho Crugen HT51
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Grandtrek ST30 or Crugen HT51?

Which is better in the wet, Grandtrek ST30 or Crugen HT51?

Kumho Crugen HT51, 76 vs 51 on our wet score.

Which grips better on dry roads, Grandtrek ST30 or Crugen HT51?

Kumho Crugen HT51, 74 vs 49 on our dry score.

Which is better in snow, Grandtrek ST30 or Crugen HT51?

Kumho Crugen HT51, 70 vs 54 on our snow score.

Which is quieter, Grandtrek ST30 or Crugen HT51?

Kumho Crugen HT51, 72 vs 52 on our noise score.

Which is more comfortable, Grandtrek ST30 or Crugen HT51?

Kumho Crugen HT51, 70 vs 47 on our comfort score.

Which lasts longer, Grandtrek ST30 or Crugen HT51?

Kumho Crugen HT51, 65 vs 47 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