Tests – · 1 test Owners 70 · 70 reviews
Head-to-head
Updated
Nexen Roadian AT Pro RA8 vs Cooper Discoverer AT3 4S — 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 + 1 road tests and 70 + 688 owner reviews. How we score
Discoverer AT3 4S is ahead, 79–69
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Tests – · 1 test Owners 84 · 688 reviews
Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (tested tread life (miles))
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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67
Dry
Discoverer AT3 4S +1582Why this score
Source Roadian AT Pro RA8 Discoverer AT3 4S Professional tests (TWG score) ≈ 68 (est.) ≈ 77 (est.) Reviews found online 67 89 Roadian AT Pro RA8: 60% × 67.5 (est.) + 40% × 66.7 = 67
Discoverer AT3 4S: 60% × 76.8 (est.) + 40% × 88.8 = 82
No road tests of dry for Roadian AT Pro RA8. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
No road tests of dry for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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71
Wet
Discoverer AT3 4S +1586Why this score
Source Roadian AT Pro RA8 Discoverer AT3 4S Professional tests (TWG score) ≈ 71 (est.) ≈ 82 (est.) Reviews found online 71 91 Roadian AT Pro RA8: 60% × 70.6 (est.) + 40% × 70.5 = 71
Discoverer AT3 4S: 60% × 81.9 (est.) + 40% × 90.9 = 86
No road tests of wet for Roadian AT Pro RA8. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
No road tests of wet for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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71
Snow
Discoverer AT3 4S +273Why this score
Source Roadian AT Pro RA8 Discoverer AT3 4S Professional tests (TWG score) ≈ 71 (est.) ≈ 72 (est.) Reviews found online 71 75 Roadian AT Pro RA8: 60% × 70.8 (est.) + 40% × 70.8 = 71
Discoverer AT3 4S: 60% × 72.4 (est.) + 40% × 75 = 73
No road tests of snow for Roadian AT Pro RA8. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
No road tests of snow for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
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65
Comfort
Discoverer AT3 4S +1580Why this score
Source Roadian AT Pro RA8 Discoverer AT3 4S Professional tests (TWG score) ≈ 68 (est.) ≈ 72 (est.) Reviews found online 63 86 Roadian AT Pro RA8: 40% × 68.1 (est.) + 60% × 63.4 = 65
Discoverer AT3 4S: 40% × 72.2 (est.) + 60% × 85.8 = 80
No road tests of comfort for Roadian AT Pro RA8 or Discoverer AT3 4S. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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68
Noise
Discoverer AT3 4S +573Why this score
Source Roadian AT Pro RA8 Discoverer AT3 4S Professional tests (TWG score) ≈ 67 (est.) ≈ 67 (est.) Reviews found online 71 84 Roadian AT Pro RA8: 60% × 66.6 (est.) + 40% × 71.3 = 68
Discoverer AT3 4S: 60% × 66.6 (est.) + 40% × 83.5 = 73
No road tests of noise for Roadian AT Pro RA8 or Discoverer AT3 4S. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
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69
Treadwear
Discoverer AT3 4S +675Why this score
Source Roadian AT Pro RA8 Discoverer AT3 4S Professional tests (TWG score) · 1 / 1 tests 67 71 Reviews found online 73 80 Tested Tread Life (Miles) (% of best) · 1 shared test · wins 0–1 55% 60% Roadian AT Pro RA8: 60% × 66.8 + 40% × 73.3 = 69
Discoverer AT3 4S: 60% × 71.1 + 40% × 79.6 = 75
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–
Handling (owners)
No comparison81Why this score
Source Roadian AT Pro RA8 Discoverer AT3 4S Reviews found online – 81
Scores at a glance
| Category | Nexen Roadian AT Pro RA8 | Cooper Discoverer AT3 4S |
|---|---|---|
| Relative Score | 69 | 79 |
| Dry | 67 | 82 |
| Wet | 71 | 86 |
| Snow | 71 | 73 |
| Comfort | 65 | 80 |
| Noise | 68 | 73 |
| Treadwear | 69 | 75 |
| Handling (owners) | – | 81 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Important
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Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
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Less important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
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Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Recomputed
Headline score
69
/ 100
Roadian AT Pro RA8
79
/ 100
Discoverer AT3 4S
Only categories both tires have data for count toward the headline score.
The professional test results behind the scores
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.
In the overall rankings of 1 tests that ran both, Nexen Roadian AT Pro RA8 finished ahead 0 times and Cooper Discoverer AT3 4S 1 times.
| Discipline | Category | Roadian AT Pro RA8 | Discoverer AT3 4S | Δ | Head-to-head |
|---|---|---|---|---|---|
| Tested Tread Life (Miles) | Treadwear | 55% | 60% | −5.0 | 0–1 in 1 shared test Newest: 2022 Consumer Reports All Terrain Truck Tires · 215/60R17 |
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #13/18 | #5/18 | – | 0–1 in 1 shared test Newest: 2022 Consumer Reports All Terrain Truck Tires · 215/60R17 |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Roadian AT Pro RA8
Not enough owner reviews yet to extract themes.
Tire B Discoverer AT3 4S
Pros
- Exceptionally quiet and smooth on-road ride compared to typical all-terrain tires
- Superb traction in wet, rainy, and deep winter snow conditions
- Strong value and competitive pricing relative to performance and lifespan
Cons
- Potential for accelerated tread wear under heavy off-road use or demanding mountain driving
- Occasional reports of balancing issues or out-of-round tires requiring multiple adjustments
- Minor fuel economy drop or increased rolling resistance when switching from standard highway tires
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Nexen Roadian AT Pro RA8
We haven't collected enough community discussion about this tire yet.
Tire B
Positive
Cooper Discoverer AT3 4S
Community sentiment for the Cooper Discoverer AT3 4S is predominantly positive, with drivers praising its quiet highway ride, strong traction across snow, rain, and dry pavement, and appealing appearance. Several owners note that while it handles light off-road duties and daily driving well, tread life occasionally falls short of mileage expectations. In addition, multiple posts highlight frustration and concern regarding availability and recent discontinuation across various sizes.
r/DubaiPetrolHeads
·1 upvote ·2026-01-20
“Cooper Discoverer AT3 4s I am struggling to find Cooper Discoverer AT3 4s tyres with size 265/70/17. There seemed to be an acute shortage in the market. I am not keen on BF Goodrich due to the weight and price. I shall appreciate it if anyone with reliable leads for Cooper tyres. What else do you recommend if Cooper is just not realistically available? I can wait till March before I need to get my car tested for renewal of registration. TIA.”
r/JeepRenegade
·6 upvotes ·2020-08-24
“New tires: Cooper Discoverer AT3 4S Needed a 3PMSF tire and these Coopers edged out the Wildpeak AT3Ws based on wear rating and highway performance. Also, Cooper has a promo right now for a $70 mail in rebate. MPG has been about the same, maybe slightly better. Visually, I like them, more rugged than the stock Falkens. Highway and forest road driving has been solid. Stock size, 215/65R17, on a 2020 TH: Read more”
ramforum.com
·2023-01-27
“Installed new Cooper Discoverer AT3 4s tires on my 1500 today. Took off a set that I put on three years ago when the stock tires wore out. I think I got good performance from the first set, but they didn't last as long as I would have hoped. They were getting pretty close to the wear bars, so had some life left. The guy at the tire shop estimated that I would get another 10000 miles out of them. They had a little less than 40 K miles. We got a bit of snow here this week, and I could tell that they were not gripping nearly as well as they did before. If it was spring/summer, they would have stayed on the truck. I will be driving to Maine next week, pulling a snowmobile trailer, so I decided that it was time to buy now, rather than risking a wreck. New tires look similar to the old ones. Still made in USA (good), no longer available with white letters, black wall only, in cast that is important to you.”
Top themes
#Snow and wet traction#Quiet highway ride#Tread life and longevity#Discontinuation and availability#Comfortable ride quality#Mild off-road performance
Based on 27 community posts
Specs side by side
| Attribute | A · Nexen Roadian AT Pro RA8 | B · Cooper Discoverer AT3 4S |
|---|---|---|
| Category | All-Terrain tire | All-Terrain tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 39 | 14 |
| Rim diameters | 15″ – 22″ | 15″ – 22″ |
| Tread depth | 13/32″ | 12 - 14/32″ |
| UTQG | 560 A B | 620 A B |
| Treadwear warranty | 50,000 mi | 65,000 mi |
| Sidewall | Outlined White Lettering | Black Side Wall - Raised Outline White Lettering |
| Max pressure | 51 psi | 44 - 50 psi |
| Sizes in common | 7 | 7 |
Which one should you actually buy?
69
/ 100
Nexen Roadian AT Pro RA8
79
/ 100
Cooper Discoverer AT3 4S
Winner: Cooper Discoverer AT3 4S — better dry, wet and comfort. It leads or ties in every category we score.
Pick tire B
You want the most grip on dry roads
Cooper Discoverer AT3 4S scores 82 vs 67 on dry.
Pick tire B
Your priority is wet-weather safety
Cooper Discoverer AT3 4S scores 86 vs 71 on wet.
Pick tire B
You want the most comfortable ride
Cooper Discoverer AT3 4S scores 80 vs 65 on comfort.
Pick tire B
You want the longest tread life
Cooper Discoverer AT3 4S scores 75 vs 69 on treadwear.
Tire A · Nexen Roadian AT Pro RA8
Tire B · Cooper Discoverer AT3 4S
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Roadian AT Pro RA8 or Discoverer AT3 4S?
Which is better in the wet, Roadian AT Pro RA8 or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 86 vs 71 on our wet score.
Which grips better on dry roads, Roadian AT Pro RA8 or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 82 vs 67 on our dry score.
Which is better in snow, Roadian AT Pro RA8 or Discoverer AT3 4S?
Neither, by our numbers: 71 vs 73 on the snow score, within 3 points.
Which is quieter, Roadian AT Pro RA8 or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 73 vs 68 on our noise score.
Which is more comfortable, Roadian AT Pro RA8 or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 80 vs 65 on our comfort score.
Which lasts longer, Roadian AT Pro RA8 or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 75 vs 69 on our treadwear 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