Tests – · none yet Owners 67 · 973 reviews
Best test result: #13 of 13 in 2018 SA4x4 All-Terrain Tire Test R17 (overall ranking)
Head-to-head
Updated
Cooper Discoverer A/T3 vs BFGoodrich Mud-Terrain T/A KM2 — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Mud-Terrain T/A KM2 leads, 68–67 Narrow edge
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Tests – · none yet Owners 67 · 44 reviews
Best test result: #2 of 10 in 2016 All Terrain and Off Road MT Tyre Test (overall ranking)
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
71
Dry
Discoverer A/T3 +368Why this score
Source Discoverer A/T3 Mud-Terrain T/A KM2 Reviews found online 73 68 -
73
Wet
Discoverer A/T3 +469Why this score
Source Discoverer A/T3 Mud-Terrain T/A KM2 Reviews found online 75 68 -
68
Snow
Level68Why this score
Source Discoverer A/T3 Mud-Terrain T/A KM2 Reviews found online 66 67 -
69
Comfort
Discoverer A/T3 +168Why this score
Source Discoverer A/T3 Mud-Terrain T/A KM2 Reviews found online 68 67 -
66
Noise
Discoverer A/T3 +561Why this score
Source Discoverer A/T3 Mud-Terrain T/A KM2 Reviews found online 65 53 -
59
Treadwear
Mud-Terrain T/A KM2 +867Why this score
Source Discoverer A/T3 Mud-Terrain T/A KM2 Reviews found online 54 67 -
65
Handling
Mud-Terrain T/A KM2 +570Why this score
Source Discoverer A/T3 Mud-Terrain T/A KM2 Reviews found online 65 70
Scores at a glance
| Category | Cooper Discoverer A/T3 | BFGoodrich Mud-Terrain T/A KM2 |
|---|---|---|
| Relative Score | 67 | 68 |
| Dry | 71 | 68 |
| Wet | 73 | 69 |
| Snow | 68 | 68 |
| Comfort | 69 | 68 |
| Noise | 66 | 61 |
| Treadwear | 59 | 67 |
| Handling | 65 | 70 |
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.
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Neutral
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Neutral
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Recomputed
Headline score
67
/ 100
Discoverer A/T3
68
/ 100
Mud-Terrain T/A KM2
The professional test results behind the scores
Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.
| Discipline | Category | Discoverer A/T3 | Mud-Terrain T/A KM2 | Δ | Both? |
|---|---|---|---|---|---|
| Overall Ranking | Overall | 20% #13/13 · 2018 SA4x4 All-Terrain Tire Test R17 | 50% #2/10 · 2016 All Terrain and Off Road MT Tyre Test | −30.0 | Different tests |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Discoverer A/T3
Pros
- Exceptionally quiet and smooth highway ride for an all-terrain tire
- Great traction and handling on dry and wet pavement
- Strong value and competitive pricing compared to major brand competitors
Cons
- Some users experienced balancing issues and persistent road vibrations
- Faster-than-expected tread wear or premature wear reported by a subset of drivers
- Subpar performance on ice and hard-packed snow for certain vehicle applications
Tire B Mud-Terrain T/A KM2
Pros
- Aggressive and appealing visual aesthetic with iconic sidewall design
- Exceptional off-road traction in mud, gravel, sand, and snow
- Surprisingly low road noise for a mud-terrain tire, especially when new
Cons
- Develops a louder highway hum or 'whine' as mileage increases
- Can experience reduced traction or oversteer on wet pavement for some drivers
- Occasional tendency to spin on loose dry rock rather than bite
Specs side by side
| Attribute | A · Cooper Discoverer A/T3 | B · BFGoodrich Mud-Terrain T/A KM2 |
|---|---|---|
| Category | All Season | All Season |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 14 | 1 |
| Rim diameters | 15″ – 22″ | 17″ |
| Tread depth | 14 - 17/32″ | 17 - 20/32″ |
| UTQG | 560 A B | — |
| Sidewall | Black Side Wall - Raised Outline White Lettering | Black Side Wall - Raised White Lettering |
| Max pressure | 44 - 80 psi | 50 - 65 psi |
Which one should you actually buy?
67
/ 100
Cooper Discoverer A/T3
68
/ 100
BFGoodrich Mud-Terrain T/A KM2
Too close to call: Cooper Discoverer A/T3 and BFGoodrich Mud-Terrain T/A KM2 are within 2 points overall. Cooper Discoverer A/T3 is stronger on noise, wet and dry. BFGoodrich Mud-Terrain T/A KM2 is stronger on treadwear and handling.
Pick tire B
You want the longest tread life
BFGoodrich Mud-Terrain T/A KM2 scores 67 vs 59 on treadwear.
Pick tire A
You want a quieter cabin
Cooper Discoverer A/T3 scores 66 vs 61 on noise.
Pick tire B
You enjoy sharp, responsive handling
BFGoodrich Mud-Terrain T/A KM2 scores 70 vs 65 on handling.
Pick tire A
Your priority is wet-weather safety
Cooper Discoverer A/T3 scores 73 vs 69 on wet.
Tire A · Cooper Discoverer A/T3
Tire B · BFGoodrich Mud-Terrain T/A KM2
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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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.