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.”
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 688 + 373 owner reviews. How we score
Discoverer AT3 4S is ahead, 79–68
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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.”
Tests – · none yet Owners 68 · 373 reviews
“275/60r20 General Grabber A/Tx Just thought I'd share what my truck looks like with a slightly larger tire size in case anyone wondered. No level, just stock. Good looking tires in my opinion.”
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Discoverer AT3 4S | Grabber A/TX |
|---|---|---|
| Professional tests (TWG score) | ≈ 77 (est.) | ≈ 68 (est.) |
| Reviews found online | 89 | 68 |
Discoverer AT3 4S: 60% × 76.5 (est.) + 40% × 88.5 = 81
Grabber A/TX: 60% × 67.9 (est.) + 40% × 67.9 = 68
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).
No road tests of dry for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | Discoverer AT3 4S | Grabber A/TX |
|---|---|---|
| Professional tests (TWG score) | ≈ 82 (est.) | ≈ 73 (est.) |
| Reviews found online | 91 | 74 |
Discoverer AT3 4S: 60% × 81.7 (est.) + 40% × 90.7 = 85
Grabber A/TX: 60% × 72.6 (est.) + 40% × 74 = 73
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).
No road tests of wet for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | Discoverer AT3 4S | Grabber A/TX |
|---|---|---|
| Professional tests (TWG score) | ≈ 72 (est.) | ≈ 69 (est.) |
| Reviews found online | 75 | 67 |
Discoverer AT3 4S: 60% × 71.9 (est.) + 40% × 74.7 = 73
Grabber A/TX: 60% × 69.4 (est.) + 40% × 66.9 = 68
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 0.32).
No road tests of snow for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
| Source | Discoverer AT3 4S | Grabber A/TX |
|---|---|---|
| Professional tests (TWG score) | ≈ 72 (est.) | ≈ 67 (est.) |
| Reviews found online | 85 | 58 |
Discoverer AT3 4S: 40% × 72.1 (est.) + 60% × 85.2 = 80
Grabber A/TX: 40% × 66.6 (est.) + 60% × 58 = 61
No road tests of comfort for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | Discoverer AT3 4S | Grabber A/TX |
|---|---|---|
| Professional tests (TWG score) | ≈ 66 (est.) | ≈ 66 (est.) |
| Reviews found online | 83 | 60 |
Discoverer AT3 4S: 60% × 66.3 (est.) + 40% × 83.1 = 73
Grabber A/TX: 60% × 66.3 (est.) + 40% × 59.5 = 64
No road tests of noise for Discoverer AT3 4S or Grabber A/TX. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
| Source | Discoverer AT3 4S | Grabber A/TX |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 71 | ≈ 69 (est.) |
| Reviews found online | 80 | 72 |
Discoverer AT3 4S: 60% × 71.1 + 40% × 79.9 = 75
Grabber A/TX: 60% × 68.6 (est.) + 40% × 72.4 = 70
No road tests of treadwear for Grabber A/TX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
| Source | Discoverer AT3 4S | Grabber A/TX |
|---|---|---|
| Reviews found online | 80 | 59 |
| Category | Cooper Discoverer AT3 4S | General Grabber A/TX |
|---|---|---|
| Relative Score | 79 | 68 |
| Dry | 81 | 68 |
| Wet | 85 | 73 |
| Snow | 73 | 68 |
| Comfort | 80 | 61 |
| Noise | 73 | 64 |
| Treadwear | 75 | 70 |
| Handling (owners) | 80 | 59 |
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 AT3 4S
Grabber A/TX
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
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.
“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”
“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.”
“Cooper Discoverer AT3 4S discontinued, good alternative? I was hoping to replace my stock tires with the Discoverer AT3 tires since I hear really good things about them and they are a bit more aggressive. Seems like they are discontinued at all the normal tire shops online. So what are my alternatives for an AT style tire? Looking for 235/60R17 to put on Drag DR-31 rims. I live in CO so snow and some light off roading are things to consider. Read more”
Based on 27 community posts
Community sentiment toward the General Grabber A/TX is largely positive, with owners frequently praising its winter traction on snow and ice as well as its quiet highway ride. Buyers appreciate its availability in lighter standard load ratings and competitive pricing compared to rivals like the BFG KO2. Minor drawbacks cited include fuel economy loss with heavier LT versions and a tendency for the tread to pick up and fling gravel rocks.
“275/60r20 General Grabber A/Tx Just thought I'd share what my truck looks like with a slightly larger tire size in case anyone wondered. No level, just stock. Good looking tires in my opinion.”
“I've got just over 10,000 miles on my General Grabber A/Tx's and I love them. For the terrain I cover, they are great. If you're looking for a mud tire, these aren't going to clean out very well (probably similar to an average A/T like a BFG KO2). But in the deep snow and ice, they've been great. They are also amazingly quiet on the highway, and on loose dirt/gravel they have done really well. I don't have enough miles to tell you how long they will last, but going off how they are wearing right now, I'm optimistic I can get 40,000 miles out of them (I rotate my tires every 4,000 miles).”
“Got tired of my stock tires looking undersized with my 2" level, so I finally put new ones on last week. I had KO2's on my last truck and was planning on going with them again, but I couldn't find the size I wanted at a decent price locally. I started reading reviews on TireRack and the General Grabber A/Tx gets the highest rating. I really liked the look and price, so I had my local Tire Discounters get me a set. These things are awesome. Very quiet and a smooth ride. I went with the LT285/60 20's (33.5") and they really fill out the wheel wells like they should.”
Based on 37 community posts
| Attribute | A · Cooper Discoverer AT3 4S | B · General Grabber A/TX |
|---|---|---|
| Category | All-Terrain tire | All-Terrain tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 14 | 44 |
| Rim diameters | 15″ – 22″ | 15″ – 22″ |
| Tread depth | 12 - 14/32″ | 14 - 17/32″ |
| UTQG | 620 A B | 640 A A - B |
| Treadwear warranty | 65,000 mi | — |
| Sidewall | Black Side Wall - Raised Outline White Lettering | Black Side Wall - Raised White Lettering |
| Max pressure | 44 - 50 psi | 35 - 80 psi |
| Sizes in common | 8 | 8 |
Cooper Discoverer AT3 4S
General Grabber A/TX
Winner: Cooper Discoverer AT3 4S — better handling, comfort and dry. It leads or ties in every category we score.
Cooper Discoverer AT3 4S scores 80 vs 59 on handling.
Cooper Discoverer AT3 4S scores 80 vs 61 on comfort.
Cooper Discoverer AT3 4S scores 81 vs 68 on dry.
Cooper Discoverer AT3 4S scores 85 vs 73 on wet.
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Cooper Discoverer AT3 4S, 85 vs 73 on our wet score.
Cooper Discoverer AT3 4S, 81 vs 68 on our dry score.
Cooper Discoverer AT3 4S, 73 vs 68 on our snow score.
Cooper Discoverer AT3 4S, 73 vs 64 on our noise score.
Cooper Discoverer AT3 4S, 80 vs 61 on our comfort score.
Cooper Discoverer AT3 4S, 75 vs 70 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