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Head-to-head Updated May 2026

BFGoodrich Mud-Terrain T/A KM3 vs Cooper Discoverer S/T Maxx — Compared (May 2026)

Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.

Tire A BFGoodrich

BFGoodrich Mud-Terrain T/A KM3

All Terrain and Off Road All Season tire

BFGoodrich Mud-Terrain T/A KM3 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
86/100
No reviews yet
Dry
84
Wet
94
Snow
90
Comfort
82
Noise
–
Treadwear
80
Handling
–
Check price on Amazon

Prices change daily — check the retailer for your size.

VS
Tire B Cooper

Cooper Discoverer S/T Maxx

Cooper Discoverer S/T Maxx tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
88/100
260 owner reviews
Dry
95
Wet
90
Snow
87
Comfort
87
Noise
82
Treadwear
87
Handling
84
Check price on Amazon

Prices change daily — check the retailer for your size.

VerdictWinner: Cooper Discoverer S/T Maxx — better dry, treadwear and comfort. Pick the BFGoodrich Mud-Terrain T/A KM3 if wet and snow matter most to you.
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Category breakdown

7 categories, side by side

Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.

Dry

Weight: Neutral
Score (0–100) Discoverer S/T Maxx leads by 11
A
84
B
95
Why this score
SourceMud-Terrain T/A KM3Discoverer S/T Maxx
Tire Rack owners 84 84
Tyre Reviews owners – 92
SimpleTire owners 93 98
America's Tire owners – 95

Wet

Weight: Important
Score (0–100) Mud-Terrain T/A KM3 leads by 4
A
94
B
90
Why this score
SourceMud-Terrain T/A KM3Discoverer S/T Maxx
Tire Rack owners 94 89
Tyre Reviews owners – 77
SimpleTire owners 91 96
America's Tire owners – 89

Snow

Weight: Neutral
Score (0–100) Mud-Terrain T/A KM3 leads by 3
A
90
B
87
Why this score
SourceMud-Terrain T/A KM3Discoverer S/T Maxx
Tire Rack owners 90 87
Tyre Reviews owners – 70
SimpleTire owners 87 90

Comfort

Weight: Neutral
Score (0–100) Discoverer S/T Maxx leads by 5
A
82
B
87
Why this score
SourceMud-Terrain T/A KM3Discoverer S/T Maxx
Tire Rack owners 82 86
Tyre Reviews owners – 70
SimpleTire owners 91 92
America's Tire owners – 86

Noise

Weight: Neutral
Score (0–100)
A
–
B
82
Why this score
SourceMud-Terrain T/A KM3Discoverer S/T Maxx
SimpleTire owners 84 86
America's Tire owners – 81

Treadwear

Weight: Important
Score (0–100) Discoverer S/T Maxx leads by 7
A
80
B
87
Why this score
SourceMud-Terrain T/A KM3Discoverer S/T Maxx
Tire Rack owners 80 74
Tyre Reviews owners – 87
SimpleTire owners 93 90
America's Tire owners – 87

Handling

Weight: Neutral
Score (0–100)
A
–
B
84
Why this score
SourceMud-Terrain T/A KM3Discoverer S/T Maxx
Tyre Reviews owners – 78
America's Tire owners – 85

Scores at a glance

CategoryBFGoodrich Mud-Terrain T/A KM3Cooper Discoverer S/T Maxx
Relative Score 86 89
Dry 84 95
Wet 94 90
Snow 90 87
Comfort 82 87
Noise – 82
Treadwear 80 87
Handling – 84

Higher is better. The Relative Score follows your weights below; category scores do not change.

Personalize

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.

Neutral
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Recomputed
Headline score

Tire A

Tire B

Only categories both tires have data for count toward the headline score.

Specifications

Specs side by side

Attribute A · BFGoodrich Mud-Terrain T/A KM3 B · Cooper Discoverer S/T Maxx
CategoryAll Terrain and Off Road All Season tire—
Vehicle typeSUV and 4x4—
Sizes available2730
Rim diameters16″ – 20″16″ – 20″
Tread depth18/32″19/32″
SidewallRaised Black LetteringBlack Side Wall - Raised Outline White Lettering
Max pressure45 - 80 psi35 - 80 psi
Final verdict

Which one should you actually buy?

BFGoodrich

Cooper

Winner: Cooper Discoverer S/T Maxx — better dry, treadwear and comfort. Pick the BFGoodrich Mud-Terrain T/A KM3 if wet and snow matter most to you.

Pick tire B You want the most grip on dry roads

Cooper Discoverer S/T Maxx scores 95 vs 84 on dry.

Pick tire B You want the longest tread life

Cooper Discoverer S/T Maxx scores 87 vs 80 on treadwear.

Pick tire B You want the most comfortable ride

Cooper Discoverer S/T Maxx scores 87 vs 82 on comfort.

Pick tire A Your priority is wet-weather safety

BFGoodrich Mud-Terrain T/A KM3 scores 94 vs 90 on wet.

Tire A · BFGoodrich Mud-Terrain T/A KM3
Check price on Amazon
Tire B · Cooper Discoverer S/T Maxx
Check price on Amazon

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.

Community buzz from Reddit and forums is shown for context only — it never changes the score.