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.
Prices change daily — check the retailer for your size.
Prices change daily — check the retailer for your size.
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Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
| Source | Grandtrek AT20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | 50 | 78 |
| Tyre Reviews owners | 73 | 84 |
| SimpleTire owners | 89 | 72 |
| Source | Grandtrek AT20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | 50 | 77 |
| Tyre Reviews owners | 52 | 71 |
| SimpleTire owners | 85 | 72 |
| Source | Grandtrek AT20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | 62 | 87 |
| Tyre Reviews owners | 23 | 60 |
| SimpleTire owners | 82 | 60 |
| Source | Grandtrek AT20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | 38 | 70 |
| Tyre Reviews owners | 69 | 71 |
| SimpleTire owners | 87 | 72 |
| Source | Grandtrek AT20 | Grandtrek ST30 |
|---|---|---|
| SimpleTire owners | 83 | 68 |
| Source | Grandtrek AT20 | Grandtrek ST30 |
|---|---|---|
| Tire Rack owners | 69 | 76 |
| Tyre Reviews owners | 68 | 70 |
| SimpleTire owners | 83 | 60 |
| Source | Grandtrek AT20 | Grandtrek ST30 |
|---|---|---|
| Tyre Reviews owners | 64 | 68 |
| Category | Dunlop Grandtrek AT20 | Dunlop Grandtrek ST30 |
|---|---|---|
| Relative Score | 59 | 70 |
| Dry | 73 | 82 |
| Wet | 52 | 71 |
| Snow | 24 | 61 |
| Comfort | 69 | 71 |
| Noise | – | 68 |
| Treadwear | 68 | 68 |
| Handling | 64 | 68 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Tire A
Tire B
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Dunlop Grandtrek A/T20 is a polarizing tire that is frequently criticized for its poor wet-weather performance and limited off-road capability, despite being a common original equipment choice for various 4x4s. While a significant portion of users report exceptional tread longevity and acceptable dry-road comfort, many owners find the lack of confidence in rain and snow to be a safety concern that outweighs the tire's durability.
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.
| Attribute | A · Dunlop Grandtrek AT20 | B · Dunlop Grandtrek ST30 |
|---|---|---|
| Category | — | All Season Premium Touring tires |
| Vehicle type | — | SUV and 4x4 |
| Tread depth | — | 10/32″ |
| UTQG | — | 360 A A |
| Sidewall | Blackwall | Blackwall |
| Max pressure | — | 51 psi |
Dunlop
Dunlop
Winner: Dunlop Grandtrek ST30 — better snow, wet and dry. It leads or ties in every category we score.
Dunlop Grandtrek ST30 scores 61 vs 24 on snow.
Dunlop Grandtrek ST30 scores 71 vs 52 on wet.
Dunlop Grandtrek ST30 scores 82 vs 73 on dry.
Dunlop Grandtrek ST30 scores 68 vs 64 on handling.
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.
