80
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
80/100
9 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated May 2026
Dunlop Grandtrek ST20 vs Dunlop Grandtrek ST30 — 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.
VS
71
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
67/100
26 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Dunlop Grandtrek ST20 — better treadwear, handling and wet. It leads or ties in every category we score.
Read full
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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
Score (0–100)
Grandtrek ST30 leads by 1
Why this score
| Source | Grandtrek ST20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | – | 78 |
| Tyre Reviews owners | 81 | 84 |
| SimpleTire owners | – | 72 |
Wet
Score (0–100)
Grandtrek ST20 leads by 7
Why this score
| Source | Grandtrek ST20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | – | 77 |
| Tyre Reviews owners | 78 | 71 |
| SimpleTire owners | – | 72 |
Snow
Score (0–100)
Why this score
| Source | Grandtrek ST20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | – | 87 |
| Tyre Reviews owners | – | 60 |
| SimpleTire owners | – | 60 |
Comfort
Score (0–100)
Grandtrek ST20 leads by 6
Why this score
| Source | Grandtrek ST20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | – | 70 |
| Tyre Reviews owners | 77 | 71 |
| SimpleTire owners | – | 72 |
Noise
Score (0–100)
Why this score
| Source | Grandtrek ST20 | Grandtrek ST30 |
|---|---|---|
| SimpleTire owners | – | 68 |
Treadwear
Score (0–100)
Grandtrek ST20 leads by 15
Why this score
| Source | Grandtrek ST20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | – | 76 |
| Tyre Reviews owners | 83 | 70 |
| SimpleTire owners | – | 60 |
Handling
Score (0–100)
Grandtrek ST20 leads by 11
Why this score
| Source | Grandtrek ST20 | Grandtrek ST30 |
|---|---|---|
| Tyre Reviews owners | 79 | 68 |
Scores at a glance
| Category | Dunlop Grandtrek ST20 | Dunlop Grandtrek ST30 |
|---|---|---|
| Relative Score | 80 | 71 |
| Dry | 81 | 82 |
| Wet | 78 | 71 |
| Snow | – | 61 |
| Comfort | 77 | 71 |
| Noise | – | 68 |
| Treadwear | 83 | 68 |
| Handling | 79 | 68 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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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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Recomputed
Headline score
80
/ 100
Tire A
71
/ 100
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.
The Dunlop Grandtrek ST20 is generally regarded as a reliable and durable original equipment tire, particularly favored by owners of compact and mid-size SUVs. While users consistently praise its longevity and predictable handling in mixed weather conditions, some report concerns regarding sidewall cracking over time and a noticeable decline in wet-weather performance as the tread depth approaches the legal limit.
Pros
- Impressive tread life and overall durability
- Consistent and predictable handling in mixed weather conditions
- Strong performance for light off-road and towing applications
- Good value proposition as an original equipment replacement
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
- Uneven shoulder wear reported by some users
Observations
- Owners of shorter-wheelbase vehicles like the Daihatsu Terios noted potential bounciness, though it was unclear if this was tire-specific or vehicle-geometry related.
- The tire is frequently cited as a preferred original equipment choice for Nissan SUVs, with users often opting to repurchase the same model after the initial set wears out.
The Dunlop Grandtrek ST30 receives highly polarized feedback, often serving as polarizing original equipment on popular SUVs like the Honda CR-V and Toyota RAV4. While some users praise its dry-road stability, longevity, and value, a significant portion of owners report dissatisfaction regarding wet-weather confidence, excessive road noise, and inconsistent tread wear.
Pros
- Strong dry-pavement grip and straight-line stability
- Competitive price point and value for money
- High mileage potential for some drivers
- Capable performance on light unpaved or rural roads
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
- Lack of confidence in winter conditions, including snow and ice
Observations
- Users of AWD vehicles like the Honda CR-V and Toyota RAV4 report highly variable experiences, ranging from excellent longevity to premature wear and poor wet-traction handling.
- The tire is frequently criticized for its lack of winter capability, with many owners noting it is unsuitable for anything beyond light, dry conditions.
Specifications
Specs side by side
| Attribute | A · Dunlop Grandtrek ST20 | B · Dunlop Grandtrek ST30 |
|---|---|---|
| Category | All Season Premium Touring tires | All Season Premium Touring tires |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Tread depth | — | 10/32″ |
| UTQG | — | 360 A A |
| Sidewall | — | Blackwall |
| Max pressure | — | 51 psi |
Final verdict
Which one should you actually buy?
80
/ 100
Dunlop
71
/ 100
Dunlop
Winner: Dunlop Grandtrek ST20 — better treadwear, handling and wet. It leads or ties in every category we score.
Pick tire A
You want the longest tread life
Dunlop Grandtrek ST20 scores 83 vs 68 on treadwear.
Pick tire A
You enjoy sharp, responsive handling
Dunlop Grandtrek ST20 scores 79 vs 68 on handling.
Pick tire A
Your priority is wet-weather safety
Dunlop Grandtrek ST20 scores 78 vs 71 on wet.
Pick tire A
You want the most comfortable ride
Dunlop Grandtrek ST20 scores 77 vs 71 on comfort.
Tire A · Dunlop Grandtrek ST20
Tire B · Dunlop Grandtrek ST30
More comparisons
Also compared with
Dunlop Grandtrek ST20 also compared with
Dunlop Grandtrek ST30 also compared with
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.