Tests 72 · 1 test Owners – · none yet
Best test result: #2 of 9 in 2025 Tire Rack All Terrain Tyre Test (dry braking)
Head-to-head
Updated
Sumitomo Encounter AT2 vs Cooper Discoverer Road Trail A/T — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 1 + 0 road tests and 0 + 6 owner reviews. How we score
Discoverer Road Trail A/T leads, 76–72 Narrow edge
Add your size for an exact match
/R
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests – · none yet Owners 75 · 6 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
71
Dry
Discoverer Road Trail A/T +172Why this score
Source Encounter AT2 Discoverer Road Trail A/T Professional tests (TWG score) · 1 / – tests 72 ≈ 71 (est.) Reviews found online ≈ 70 (est.) 74 Encounter AT2: 60% × 72.4 + 40% × 69.9 (est.) = 71
Discoverer Road Trail A/T: 60% × 70.6 (est.) + 40% × 74.1 = 72
No owner ratings of dry for Encounter AT2. The owner half is estimated from its road-test score, as far as owners and testers agree (correlation 0.42).
No road tests of dry for Discoverer Road Trail A/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
-
74
Wet
Discoverer Road Trail A/T +680Why this score
Source Encounter AT2 Discoverer Road Trail A/T Professional tests (TWG score) · 1 / – tests 74 ≈ 77 (est.) Reviews found online ≈ 73 (est.) 83 Encounter AT2: 60% × 74.2 + 40% × 72.7 (est.) = 74
Discoverer Road Trail A/T: 60% × 77.4 (est.) + 40% × 82.7 = 80
No owner ratings of wet for Encounter AT2. The owner half is estimated from its road-test score, as far as owners and testers agree (correlation 0.55).
No road tests of wet for Discoverer Road Trail A/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
-
–
Snow
No comparison74Why this score
Source Encounter AT2 Discoverer Road Trail A/T Professional tests (TWG score) – ≈ 73 (est.) Reviews found online – 76 Discoverer Road Trail A/T: 60% × 72.6 (est.) + 40% × 75.7 = 74
No road tests of snow for Discoverer Road Trail A/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
-
69
Comfort
Discoverer Road Trail A/T +675Why this score
Source Encounter AT2 Discoverer Road Trail A/T Professional tests (TWG score) · 1 / – tests 69 ≈ 71 (est.) Reviews found online ≈ 69 (est.) 78 Encounter AT2: 40% × 69.1 + 60% × 69.1 (est.) = 69
Discoverer Road Trail A/T: 40% × 70.7 (est.) + 60% × 77.5 = 75
No owner ratings of comfort for Encounter AT2. The owner half is the owners’ average (69): owners’ comfort ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
No road tests of comfort for Discoverer Road Trail A/T. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
-
67
Noise
No comparison–Why this score
Source Encounter AT2 Discoverer Road Trail A/T Professional tests (TWG score) · 1 / – tests 67 – Reviews found online ≈ 67 (est.) – Encounter AT2: 60% × 67.3 + 40% × 66.6 (est.) = 67
No owner ratings of noise for Encounter AT2. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
-
–
Treadwear
No comparison68Why this score
Source Encounter AT2 Discoverer Road Trail A/T Professional tests (TWG score) – ≈ 67 (est.) Reviews found online – 69 Discoverer Road Trail A/T: 60% × 67.2 (est.) + 40% × 69.3 = 68
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).
-
–
Handling (owners)
No comparison74Why this score
Source Encounter AT2 Discoverer Road Trail A/T Reviews found online – 74
Scores at a glance
| Category | Sumitomo Encounter AT2 | Cooper Discoverer Road Trail A/T |
|---|---|---|
| Relative Score | 72 | 76 |
| Dry | 71 | 72 |
| Wet | 74 | 80 |
| Snow | – | 74 |
| Comfort | 69 | 75 |
| Noise | 67 | – |
| Treadwear | – | 68 |
| Handling (owners) | – | 74 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
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.
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Neutral
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Less important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Recomputed
Headline score
72
/ 100
Encounter AT2
76
/ 100
Discoverer Road Trail A/T
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Encounter AT2
Not enough owner reviews yet to extract themes.
Tire B Discoverer Road Trail A/T
Pros
- Very low noise levels for an all-terrain tire
- Confident and reliable wet weather traction
- Smooth and comfortable ride quality
Cons
- Slight increase in road noise and reduction in dry grip as mileage increases
- Compound can struggle a bit on slicker, chilly asphalt during heavy rain
- Initial reports of quick wear, though potentially attributed to low tire pressure
Specs side by side
| Attribute | A · Sumitomo Encounter AT2 | B · Cooper Discoverer Road Trail A/T |
|---|---|---|
| Category | All-Terrain tire | All-Terrain tire |
| Vehicle type | SUV and 4x4 | — |
| Sizes available | 30 | — |
| Rim diameters | 16″ – 22″ | — |
| Tread depth | 12/32″ | — |
| UTQG | 660 B B | — |
| Treadwear warranty | 65,000 mi | — |
| Sidewall | Blackwall | — |
| Max pressure | 50 psi | — |
Which one should you actually buy?
72
/ 100
Sumitomo Encounter AT2
76
/ 100
Cooper Discoverer Road Trail A/T
Narrow edge: Cooper Discoverer Road Trail A/T — better wet and comfort. It leads or ties in every category we score. Sumitomo Encounter AT2 rests on little evidence so far (1 test, 0 reviews), so read this result as provisional. Cooper Discoverer Road Trail A/T rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional.
Pick tire B
Your priority is wet-weather safety
Cooper Discoverer Road Trail A/T scores 80 vs 74 on wet.
Pick tire B
You want the most comfortable ride
Cooper Discoverer Road Trail A/T scores 75 vs 69 on comfort.
Tire A · Sumitomo Encounter AT2
Tire B · Cooper Discoverer Road Trail A/T
TireWheelGuide may earn a commission from purchases made through these links.
Encounter AT2 or Discoverer Road Trail A/T?
Which is better in the wet, Encounter AT2 or Discoverer Road Trail A/T?
Cooper Discoverer Road Trail A/T, 80 vs 74 on our wet score.
Which grips better on dry roads, Encounter AT2 or Discoverer Road Trail A/T?
Neither, by our numbers: 71 vs 72 on the dry score, within 3 points.
Which is more comfortable, Encounter AT2 or Discoverer Road Trail A/T?
Cooper Discoverer Road Trail A/T, 75 vs 69 on our comfort score.
How do we compare tires?
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