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 ST20 |
|---|---|---|
| Tire Rack owners | 50 | – |
| Tyre Reviews owners | 73 | 81 |
| SimpleTire owners | 89 | – |
| Source | Grandtrek AT20 | Grandtrek ST20 |
|---|---|---|
| Tire Rack owners | 50 | – |
| Tyre Reviews owners | 52 | 78 |
| SimpleTire owners | 85 | – |
| Source | Grandtrek AT20 | Grandtrek ST20 |
|---|---|---|
| Tire Rack owners | 62 | – |
| Tyre Reviews owners | 23 | – |
| SimpleTire owners | 82 | – |
| Source | Grandtrek AT20 | Grandtrek ST20 |
|---|---|---|
| Tire Rack owners | 38 | – |
| Tyre Reviews owners | 69 | 77 |
| SimpleTire owners | 87 | – |
| Source | Grandtrek AT20 | Grandtrek ST20 |
|---|---|---|
| Tire Rack owners | 69 | – |
| Tyre Reviews owners | 68 | 83 |
| SimpleTire owners | 83 | – |
| Source | Grandtrek AT20 | Grandtrek ST20 |
|---|---|---|
| Tyre Reviews owners | 64 | 79 |
| Category | Dunlop Grandtrek AT20 | Dunlop Grandtrek ST20 |
|---|---|---|
| Relative Score | 64 | 80 |
| Dry | 73 | 81 |
| Wet | 52 | 78 |
| Snow | 24 | – |
| Comfort | 69 | 77 |
| Treadwear | 68 | 83 |
| Handling | 64 | 79 |
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 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.
| Attribute | A · Dunlop Grandtrek AT20 | B · Dunlop Grandtrek ST20 |
|---|---|---|
| Category | — | All Season Premium Touring tires |
| Vehicle type | — | SUV and 4x4 |
| Sidewall | Blackwall | — |
Dunlop
Dunlop
Winner: Dunlop Grandtrek ST20 — better wet, treadwear and handling. It leads or ties in every category we score.
Dunlop Grandtrek ST20 scores 78 vs 52 on wet.
Dunlop Grandtrek ST20 scores 83 vs 68 on treadwear.
Dunlop Grandtrek ST20 scores 79 vs 64 on handling.
Dunlop Grandtrek ST20 scores 81 vs 73 on dry.
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.
