Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 1 road tests and 973 + 7 owner reviews. How we score
Discoverer Road Trail A/T is ahead, 75–69
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Tests – · none yet Owners 67 · 973 reviews
“I have a set of 275/60R20 on my dodge work truck. Coming up on 35k. Oilfield roads. These tires are ride smooth and are quiet. They have done well in the snow and mud for me. I will purchase a set of these for my own personal truck once needed. These are great tires.”
Tests 75 · 1 test Owners 77 · 7 reviews
Best test result: #1 of 12 in 2024 Tire Rack All Terrain Tyres On-Road Test (dry circle)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Discoverer A/T3 | Discoverer Road Trail A/T |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 71 (est.) | 73 |
| Reviews found online | 74 | 75 |
Discoverer A/T3: 60% × 70.5 (est.) + 40% × 74.2 = 72
Discoverer Road Trail A/T: 60% × 72.8 + 40% × 75.3 = 74
No road tests of dry for Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
| Source | Discoverer A/T3 | Discoverer Road Trail A/T |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 74 (est.) | 79 |
| Reviews found online | 76 | 84 |
Discoverer A/T3: 60% × 73.6 (est.) + 40% × 76 = 75
Discoverer Road Trail A/T: 60% × 78.6 + 40% × 83.9 = 81
No road tests of wet for Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | Discoverer A/T3 | Discoverer Road Trail A/T |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 69 (est.) | 69 |
| Reviews found online | 67 | 76 |
Discoverer A/T3: 60% × 69.5 (est.) + 40% × 67.4 = 69
Discoverer Road Trail A/T: 60% × 68.8 + 40% × 76.2 = 72
No road tests of snow for Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
| Source | Discoverer A/T3 | Discoverer Road Trail A/T |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 69 (est.) | 79 |
| Reviews found online | 67 | 79 |
Discoverer A/T3: 40% × 68.5 (est.) + 60% × 66.6 = 67
Discoverer Road Trail A/T: 40% × 79 + 60% × 79.3 = 79
No road tests of comfort for Discoverer A/T3. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Discoverer A/T3 | Discoverer Road Trail A/T |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 66 (est.) | 75 |
| Reviews found online | 65 | ≈ 66 (est.) |
Discoverer A/T3: 60% × 66.5 (est.) + 40% × 65 = 66
Discoverer Road Trail A/T: 60% × 75.4 + 40% × 66.5 (est.) = 72
No road tests of noise for Discoverer A/T3. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
No owner ratings of noise for Discoverer Road Trail A/T. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
| Source | Discoverer A/T3 | Discoverer Road Trail A/T |
|---|---|---|
| Professional tests (TWG score) | ≈ 61 (est.) | ≈ 69 (est.) |
| Reviews found online | 52 | 73 |
Discoverer A/T3: 60% × 61.4 (est.) + 40% × 51.7 = 58
Discoverer Road Trail A/T: 60% × 68.8 (est.) + 40% × 72.9 = 70
No road tests of treadwear for Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
No road tests of treadwear for Discoverer Road Trail A/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
| Source | Discoverer A/T3 | Discoverer Road Trail A/T |
|---|---|---|
| Reviews found online | 64 | 76 |
| Category | Cooper Discoverer A/T3 | Cooper Discoverer Road Trail A/T |
|---|---|---|
| Relative Score | 69 | 75 |
| Dry | 72 | 74 |
| Wet | 75 | 81 |
| Snow | 69 | 72 |
| Comfort | 67 | 79 |
| Noise | 66 | 72 |
| Treadwear | 58 | 70 |
| Handling (owners) | 64 | 76 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Discoverer A/T3
Discoverer Road Trail A/T
Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.
| Discipline | Category | Discoverer A/T3 | Discoverer Road Trail A/T | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #13/13 2018 SA4x4 All-Terrain Tire Test R17 | #9/30 2026 Tire Rack All Terrain Tyre Snow Test | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
The community expresses overwhelmingly positive feedback for the Cooper Discoverer A/T3, praising its strong performance on the highway, good wet and snow traction, and smooth, relatively quiet ride quality. Many users note that the tires wear well over tens of thousands of miles, though some mention that they can get slightly louder as they age and tend to pack up in deep mud. Overall, users consider them to be reliable, high-value all-terrain tires suitable for daily driving, towing, and light off-roading.
“Put a set on a day after I purchased my truck. Have about 8500 miles on them and no complaints whatsoever. Been on a 3000 trip with them not towing and a 2400 mile trip towing a 8K travel trailer. No problems on either trip. I'll get another set when these wear out, hopefully many miles down the road. No sign of wear yet!”
“I have a set of 275/60R20 on my dodge work truck. Coming up on 35k. Oilfield roads. These tires are ride smooth and are quiet. They have done well in the snow and mud for me. I will purchase a set of these for my own personal truck once needed. These are great tires.”
“Been running them on the wifes truck for 3 or 4 years now. They are a good tire, very little noise on pavement, does fine on snow. Cooper Discoverer A/T3 Review”
Based on 25 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Cooper Discoverer A/T3 | B · Cooper Discoverer Road Trail A/T |
|---|---|---|
| Category | All-Terrain tire | All-Terrain tire |
| Vehicle type | SUV and 4x4 | — |
| Sizes available | 14 | — |
| Rim diameters | 15″ – 22″ | — |
| Tread depth | 14 - 17/32″ | — |
| UTQG | 560 A B | — |
| Sidewall | Black Side Wall - Raised Outline White Lettering | — |
| Max pressure | 44 - 80 psi | — |
Cooper Discoverer A/T3
Cooper Discoverer Road Trail A/T
Winner: Cooper Discoverer Road Trail A/T — better comfort, treadwear and handling. It leads or ties in every category we score. Cooper Discoverer Road Trail A/T rests on little evidence so far (1 test, 7 reviews), so read this result as provisional.
Cooper Discoverer Road Trail A/T scores 79 vs 67 on comfort.
Cooper Discoverer Road Trail A/T scores 70 vs 58 on treadwear.
Cooper Discoverer Road Trail A/T scores 76 vs 64 on handling.
Cooper Discoverer Road Trail A/T scores 81 vs 75 on wet.
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Cooper Discoverer Road Trail A/T, 81 vs 75 on our wet score.
Neither, by our numbers: 72 vs 74 on the dry score, within 3 points.
Cooper Discoverer Road Trail A/T, 72 vs 69 on our snow score.
Cooper Discoverer Road Trail A/T, 72 vs 66 on our noise score.
Cooper Discoverer Road Trail A/T, 79 vs 67 on our comfort score.
Cooper Discoverer Road Trail A/T, 70 vs 58 on our treadwear score.
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology
