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.
TireWheelGuide may earn a commission from purchases made via links on this page.
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
| Source | Discoverer S/T Maxx | Open Country All Terrain |
|---|---|---|
| Tire Rack owners | 84 | – |
| Tyre Reviews owners | 92 | 81 |
| SimpleTire owners | 98 | – |
| America's Tire owners | 95 | – |
| Source | Discoverer S/T Maxx | Open Country All Terrain |
|---|---|---|
| Tire Rack owners | 89 | – |
| Tyre Reviews owners | 77 | 76 |
| SimpleTire owners | 96 | – |
| America's Tire owners | 89 | – |
| Source | Discoverer S/T Maxx | Open Country All Terrain |
|---|---|---|
| Tire Rack owners | 87 | – |
| Tyre Reviews owners | 70 | 65 |
| SimpleTire owners | 90 | – |
| Source | Discoverer S/T Maxx | Open Country All Terrain |
|---|---|---|
| Tire Rack owners | 86 | – |
| Tyre Reviews owners | 70 | 79 |
| SimpleTire owners | 92 | – |
| America's Tire owners | 86 | – |
| Source | Discoverer S/T Maxx | Open Country All Terrain |
|---|---|---|
| SimpleTire owners | 86 | – |
| America's Tire owners | 81 | – |
| Source | Discoverer S/T Maxx | Open Country All Terrain |
|---|---|---|
| Tire Rack owners | 74 | – |
| Tyre Reviews owners | 87 | 81 |
| SimpleTire owners | 90 | – |
| America's Tire owners | 87 | – |
| Source | Discoverer S/T Maxx | Open Country All Terrain |
|---|---|---|
| Tyre Reviews owners | 78 | 74 |
| America's Tire owners | 85 | – |
| Category | Cooper Discoverer S/T Maxx | Toyo Open Country All Terrain |
|---|---|---|
| Relative Score | 88 | 87 |
| Dry | 95 | 94 |
| Wet | 90 | 89 |
| Snow | 87 | 73 |
| Comfort | 87 | 89 |
| Noise | 82 | 89 |
| Treadwear | 87 | 87 |
| Handling | 84 | 90 |
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
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
Not enough owner reviews yet to extract themes.
The Toyo Open Country series is widely regarded as a premium, high-performance option for truck and SUV owners seeking a balance between rugged off-road capability and daily-driver refinement. While users consistently praise their impressive longevity, snow traction, and surprisingly quiet road manners for their aggressive tread patterns, some owners report concerns regarding wet-weather handling and high price points.
| Attribute | A · Cooper Discoverer S/T Maxx | B · Toyo Open Country All Terrain |
|---|---|---|
| Category | — | All Season All Terrain and Off Road tires |
| Vehicle type | — | SUV and 4x4 |
| Sizes available | 30 | — |
| Rim diameters | 16″ – 20″ | — |
| Tread depth | 19/32″ | — |
| Sidewall | Black Side Wall - Raised Outline White Lettering | — |
| Max pressure | 35 - 80 psi | — |
Cooper
Toyo
Too close to call: Cooper Discoverer S/T Maxx and Toyo Open Country All Terrain are within 2 points overall. Cooper Discoverer S/T Maxx is stronger on snow. Toyo Open Country All Terrain is stronger on noise and handling.
Cooper Discoverer S/T Maxx scores 87 vs 73 on snow.
Toyo Open Country All Terrain scores 89 vs 82 on noise.
Toyo Open Country All Terrain scores 90 vs 84 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.
