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Head-to-head Updated

Dunlop Grandtrek AT20 vs Toyo Proxes ST — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 57 + 14 owner reviews. How we score

Proxes ST is ahead, 71–45

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Toyo Proxes ST
Tire BToyo

Proxes ST

All Season

Provisional

Tests – · none yet Owners 73 · 14 reviews

Category by category

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

  1. 43

    Dry

    Proxes ST +29
    72
    Why this score
    SourceGrandtrek AT20Proxes ST
    Professional tests (TWG score)≈ 52 (est.)≈ 71 (est.)
    Reviews found online2975

    Grandtrek AT20: 60% × 52.2 (est.) + 40% × 29.2 = 43

    Proxes ST: 60% × 70.5 (est.) + 40% × 74.7 = 72

    No road tests of dry for Grandtrek AT20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

    No road tests of dry for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 43

    Wet

    Proxes ST +32
    75
    Why this score
    SourceGrandtrek AT20Proxes ST
    Professional tests (TWG score)≈ 50 (est.)≈ 74 (est.)
    Reviews found online3477

    Grandtrek AT20: 60% × 49.6 (est.) + 40% × 33.7 = 43

    Proxes ST: 60% × 73.6 (est.) + 40% × 76.6 = 75

    No road tests of wet for Grandtrek AT20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

    No road tests of wet for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. 49

    Snow

    Proxes ST +17
    66
    Why this score
    SourceGrandtrek AT20Proxes ST
    Professional tests (TWG score)≈ 58 (est.)≈ 68 (est.)
    Reviews found online3564

    Grandtrek AT20: 60% × 58.3 (est.) + 40% × 34.8 = 49

    Proxes ST: 60% × 67.8 (est.) + 40% × 63.6 = 66

    No road tests of snow for Grandtrek AT20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

    No road tests of snow for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 51

    Comfort

    Proxes ST +21
    72
    Why this score
    SourceGrandtrek AT20Proxes ST
    Professional tests (TWG score)≈ 63 (est.)≈ 70 (est.)
    Reviews found online3374

    Grandtrek AT20: 60% × 62.9 (est.) + 40% × 33.1 = 51

    Proxes ST: 60% × 70 (est.) + 40% × 74.1 = 72

    No road tests of comfort for Grandtrek AT20 or Proxes ST. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 57

    Noise

    No comparison
    –
    Why this score
    SourceGrandtrek AT20Proxes ST
    Professional tests (TWG score)≈ 67 (est.)–
    Reviews found online43–

    Grandtrek AT20: 60% × 67.3 (est.) + 40% × 42.6 = 57

    No road tests of noise for Grandtrek AT20. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 52

    Treadwear

    Proxes ST +17
    69
    Why this score
    SourceGrandtrek AT20Proxes ST
    Professional tests (TWG score)≈ 58 (est.)≈ 67 (est.)
    Reviews found online4272

    Grandtrek AT20: 60% × 58.3 (est.) + 40% × 41.7 = 52

    Proxes ST: 60% × 67.5 (est.) + 40% × 71.7 = 69

    No road tests of treadwear for Grandtrek AT20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

    No road tests of treadwear for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  7. 34

    Handling (owners)

    Proxes ST +37
    71
    Why this score
    SourceGrandtrek AT20Proxes ST
    Reviews found online3471
Scores at a glance
CategoryDunlop Grandtrek AT20Toyo Proxes ST
Relative Score 45 71
Dry 43 72
Wet 43 75
Snow 49 66
Comfort 51 72
Noise 57 –
Treadwear 52 69
Handling (owners) 34 71

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

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score

Grandtrek AT20

Proxes ST

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 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

Tire B Proxes ST

Pros

  • Exceptional tread life and long-term durability
  • Quiet and comfortable ride quality compared to other brands and run-flats
  • Strong dry and wet grip with good resistance to aquaplaning

Cons

  • Poor performance and limited traction in snow and ice
  • A small number of users experienced disappointing treadwear and longevity
  • Conflicting feedback regarding wet grip, with isolated reports of poor performance
All owner themes in the Proxes ST review

Specs side by side

Attribute A · Dunlop Grandtrek AT20 B · Toyo Proxes ST
CategoryAll-Terrain tireAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available91
Rim diameters15″ – 18″19″
SidewallBlackwall—

Which one should you actually buy?

Dunlop Grandtrek AT20

Toyo Proxes ST

Winner: Toyo Proxes ST — better handling, wet and dry. It leads or ties in every category we score. Toyo Proxes ST rests on little evidence so far (0 tests, 14 reviews), so read this result as provisional.

Pick tire B You enjoy sharp, responsive handling

Toyo Proxes ST scores 71 vs 34 on handling.

Pick tire B Your priority is wet-weather safety

Toyo Proxes ST scores 75 vs 43 on wet.

Pick tire B You want the most grip on dry roads

Toyo Proxes ST scores 72 vs 43 on dry.

Pick tire B You want the most comfortable ride

Toyo Proxes ST scores 72 vs 51 on comfort.

Tire A · Dunlop Grandtrek AT20
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Tire B · Toyo Proxes ST
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Grandtrek AT20 or Proxes ST?

Which is better in the wet, Grandtrek AT20 or Proxes ST?

Toyo Proxes ST, 75 vs 43 on our wet score.

Which grips better on dry roads, Grandtrek AT20 or Proxes ST?

Toyo Proxes ST, 72 vs 43 on our dry score.

Which is better in snow, Grandtrek AT20 or Proxes ST?

Toyo Proxes ST, 66 vs 49 on our snow score.

Which is more comfortable, Grandtrek AT20 or Proxes ST?

Toyo Proxes ST, 72 vs 51 on our comfort score.

Which lasts longer, Grandtrek AT20 or Proxes ST?

Toyo Proxes ST, 69 vs 52 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