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Head-to-head Updated May 2026

Bridgestone Ecopia EP422 vs Dunlop Grandtrek ST1 — 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.

Tire A Bridgestone

Bridgestone Ecopia EP422

Bridgestone Ecopia EP422 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
42/100
Owner ratings
Dry
70
Wet
71
Snow
61
Comfort
72
Noise
71
Treadwear
62
Handling
64
Check price on Amazon

Prices change daily — check the retailer for your size.

VS
Tire B Dunlop

Dunlop Grandtrek ST1

All Season Premium Touring tires

Dunlop Grandtrek ST1 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
69/100
2 owner reviews
Dry
80
Wet
85
Snow
–
Comfort
60
Noise
–
Treadwear
55
Handling
70
Check price on Amazon

Prices change daily — check the retailer for your size.

VerdictWinner: Dunlop Grandtrek ST1 — better wet, dry and handling. Pick the Bridgestone Ecopia EP422 if comfort and treadwear matter 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 ST1 leads by 10
A
70
B
80
Why this score
SourceEcopia EP422Grandtrek ST1
Tire Rack owners 78 –
Tyre Reviews owners – 80

Wet

Weight: Important
Score (0–100) Grandtrek ST1 leads by 14
A
71
B
85
Why this score
SourceEcopia EP422Grandtrek ST1
Tire Rack owners 76 –
Tyre Reviews owners – 85

Snow

Weight: Neutral
Score (0–100)
A
61
B
–
Why this score
SourceEcopia EP422Grandtrek ST1
Tire Rack owners 57 –

Comfort

Weight: Neutral
Score (0–100) Ecopia EP422 leads by 12
A
72
B
60
Why this score
SourceEcopia EP422Grandtrek ST1
Tire Rack owners 80 –
Tyre Reviews owners – 60

Noise

Weight: Neutral
Score (0–100)
A
71
B
–

Treadwear

Weight: Important
Score (0–100) Ecopia EP422 leads by 7
A
62
B
55
Why this score
SourceEcopia EP422Grandtrek ST1
Tire Rack owners 70 –
Tyre Reviews owners – 55

Handling

Weight: Neutral
Score (0–100) Grandtrek ST1 leads by 6
A
64
B
70
Why this score
SourceEcopia EP422Grandtrek ST1
Tyre Reviews owners – 70

Scores at a glance

CategoryBridgestone Ecopia EP422Dunlop Grandtrek ST1
Relative Score 68 70
Dry 70 80
Wet 71 85
Snow 61 –
Comfort 72 60
Noise 71 –
Treadwear 62 55
Handling 64 70

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

Personalize

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.

Neutral
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Important
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Neutral
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Neutral
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Neutral
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Important
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Neutral
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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 Ecopia EP422

Not enough owner reviews yet to extract themes.

Tire B Dunlop Grandtrek ST1

The Dunlop Grandtrek ST1 receives mixed feedback, with users initially impressed by its handling characteristics but ultimately disappointed by its longevity. While the tire offers competent traction and lateral stability on both paved and unpaved surfaces, its rapid tread degradation significantly undermines its value proposition.

Pros

  • Strong lateral stability during cornering
  • Reliable traction on gravel and sand surfaces
  • Competent wet weather grip

Cons

  • Extremely poor tread life
  • Premature wear occurring in under 10,000 miles
  • High cost-per-mile due to lack of durability

Observations

  • Users operating small SUVs on mixed-terrain, including gravel and country roads, report significantly accelerated wear patterns.
Specifications

Specs side by side

Attribute A · Bridgestone Ecopia EP422 B · Dunlop Grandtrek ST1
Category—All Season Premium Touring tires
Vehicle type—SUV and 4x4
Final verdict

Which one should you actually buy?

Bridgestone

Dunlop

Winner: Dunlop Grandtrek ST1 — better wet, dry and handling. Pick the Bridgestone Ecopia EP422 if comfort and treadwear matter most to you.

Pick tire B Your priority is wet-weather safety

Dunlop Grandtrek ST1 scores 85 vs 71 on wet.

Pick tire A You want the most comfortable ride

Bridgestone Ecopia EP422 scores 72 vs 60 on comfort.

Pick tire B You want the most grip on dry roads

Dunlop Grandtrek ST1 scores 80 vs 70 on dry.

Pick tire A You want the longest tread life

Bridgestone Ecopia EP422 scores 62 vs 55 on treadwear.

Tire A · Bridgestone Ecopia EP422
Check price on Amazon
Tire B · Dunlop Grandtrek ST1
Check price on Amazon

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.