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.
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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 | Open Country A/T II |
|---|---|---|
| Tire Rack owners | 50 | – |
| Tyre Reviews owners | 73 | 65 |
| SimpleTire owners | 89 | – |
| Source | Grandtrek AT20 | Open Country A/T II |
|---|---|---|
| Tire Rack owners | 50 | – |
| Tyre Reviews owners | 52 | 50 |
| SimpleTire owners | 85 | – |
| Source | Grandtrek AT20 | Open Country A/T II |
|---|---|---|
| Tire Rack owners | 62 | – |
| Tyre Reviews owners | 23 | 45 |
| SimpleTire owners | 82 | – |
| Source | Grandtrek AT20 | Open Country A/T II |
|---|---|---|
| Tire Rack owners | 38 | – |
| Tyre Reviews owners | 69 | 80 |
| SimpleTire owners | 87 | – |
| Source | Grandtrek AT20 | Open Country A/T II |
|---|---|---|
| SimpleTire owners | 83 | – |
| Source | Grandtrek AT20 | Open Country A/T II |
|---|---|---|
| Tire Rack owners | 69 | – |
| Tyre Reviews owners | 68 | 75 |
| SimpleTire owners | 83 | – |
| Source | Grandtrek AT20 | Open Country A/T II |
|---|---|---|
| Tyre Reviews owners | 64 | 60 |
| Category | Dunlop Grandtrek AT20 | Toyo Open Country A/T II |
|---|---|---|
| Relative Score | 59 | 92 |
| Dry | 73 | 96 |
| Wet | 52 | 91 |
| Snow | 24 | 91 |
| Comfort | 69 | 93 |
| Noise | – | 89 |
| Treadwear | 68 | 92 |
| Handling | 64 | 93 |
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 Toyo Open Country A/T II is widely regarded as a versatile, durable, and quiet all-terrain tire that excels in mixed-use scenarios, including towing and light-to-moderate off-roading. While the vast majority of users praise its longevity and highway comfort, a subset of owners reports persistent issues with high-speed balancing and inconsistent performance on slick, wet pavement.
| Attribute | A · Dunlop Grandtrek AT20 | B · Toyo Open Country A/T II |
|---|---|---|
| Sidewall | Blackwall | — |
Dunlop
Toyo
Winner: Toyo Open Country A/T II — better snow, wet and handling. It leads or ties in every category we score.
Toyo Open Country A/T II scores 91 vs 24 on snow.
Toyo Open Country A/T II scores 91 vs 52 on wet.
Toyo Open Country A/T II scores 93 vs 64 on handling.
Toyo Open Country A/T II scores 93 vs 69 on comfort.
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.
