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Head-to-head Updated September 2026

Cooper Discoverer AT3 XLT vs Michelin Cross Competition S12 — Compared (September 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 Cooper

Cooper Discoverer AT3 XLT

Premium Touring All Season tire

Cooper Discoverer AT3 XLT tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
94/100
478 owner reviews
Dry
97
Wet
94
Snow
89
Comfort
93
Noise
93
Treadwear
93
Handling
94

Prices change daily — check the retailer for your size.

VS
Tire B Michelin

Michelin Cross Competition S12

All Season Motocross and Enduro tires

Michelin Cross Competition S12 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
67/100
1 owner review
Dry
50
Wet
80
Snow
–
Comfort
50
Noise
–
Treadwear
80
Handling
60

Prices change daily — check the retailer for your size.

VerdictWinner: Cooper Discoverer AT3 XLT — better dry, comfort and handling. It leads or ties in every category we score.
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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 AT3 XLT leads by 47
A — Cooper Discoverer AT3 XLT
97
B — Michelin Cross Competition S12
50
Why this score
SourceDiscoverer AT3 XLTCross Competition S12
Tire Rack owners 89 –
Tyre Reviews owners 83 50
SimpleTire owners 98 –
America's Tire owners 97 –

Wet

Weight: Important
Score (0–100) Discoverer AT3 XLT leads by 14
A — Cooper Discoverer AT3 XLT
94
B — Michelin Cross Competition S12
80
Why this score
SourceDiscoverer AT3 XLTCross Competition S12
Tire Rack owners 87 –
Tyre Reviews owners 78 80
SimpleTire owners 97 –
America's Tire owners 94 –

Snow

Weight: Neutral
Score (0–100)
A — Cooper Discoverer AT3 XLT
89
B — Michelin Cross Competition S12
–
Why this score
SourceDiscoverer AT3 XLTCross Competition S12
Tire Rack owners 92 –
Tyre Reviews owners 70 –
SimpleTire owners 90 –

Comfort

Weight: Neutral
Score (0–100) Discoverer AT3 XLT leads by 43
A — Cooper Discoverer AT3 XLT
93
B — Michelin Cross Competition S12
50
Why this score
SourceDiscoverer AT3 XLTCross Competition S12
Tire Rack owners 83 –
Tyre Reviews owners 88 50
SimpleTire owners 96 –
America's Tire owners 93 –

Noise

Weight: Neutral
Score (0–100)
A — Cooper Discoverer AT3 XLT
93
B — Michelin Cross Competition S12
–
Why this score
SourceDiscoverer AT3 XLTCross Competition S12
SimpleTire owners 92 –
America's Tire owners 93 –

Treadwear

Weight: Important
Score (0–100) Discoverer AT3 XLT leads by 13
A — Cooper Discoverer AT3 XLT
93
B — Michelin Cross Competition S12
80
Why this score
SourceDiscoverer AT3 XLTCross Competition S12
Tire Rack owners 87 –
Tyre Reviews owners 78 80
SimpleTire owners 91 –
America's Tire owners 93 –

Handling

Weight: Neutral
Score (0–100) Discoverer AT3 XLT leads by 34
A — Cooper Discoverer AT3 XLT
94
B — Michelin Cross Competition S12
60
Why this score
SourceDiscoverer AT3 XLTCross Competition S12
Tyre Reviews owners 83 60
America's Tire owners 94 –

Scores at a glance

Cooper Discoverer AT3 XLT vs Michelin Cross Competition S12: scores by category (0–100)
CategoryCooper Discoverer AT3 XLTMichelin Cross Competition S12
Relative Score 94 68
Dry 97 50
Wet 94 80
Snow 89 –
Comfort 93 50
Noise 93 –
Treadwear 93 80
Handling 94 60

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
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Neutral
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Recomputed
Headline score

Tire A

Tire B

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

From owners

Pros, cons & observations

Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.

Tire A Cooper Discoverer AT3 XLT

Not enough owner reviews yet to extract themes.

Tire B Michelin Cross Competition S12

The Michelin Cross Competition S12 is viewed as a specialized tire tailored specifically for soft to intermediate terrain. Users generally find it to be a competent performer in its intended off-road environment.

Pros

  • Strong performance in soft terrain
  • Effective traction in mid-soft conditions

Cons

  • Limited versatility outside of soft-to-mid terrain
  • Average overall rating suggests potential durability or performance trade-offs

Observations

  • Performance is highly dependent on terrain type rather than specific vehicle or tire size configurations.
Community buzz

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Cooper Discoverer AT3 XLT

Positive

Community members express strong satisfaction with the Cooper Discoverer AT3 XLT, highlighting its smooth ride quality, impressive comfort, and quietness compared to competing all-terrain tires like BFG KO2 and Toyo Open Country A/T II. Users also appreciate the solid value when purchased through online retailers during holiday sales, though questions occasionally arise regarding specific winter rating designations.

Top themes
#ride comfort and smoothness#low road noise#comparison to competing tires#value and pricing#winter and snow rating

Based on 7 community posts

Tire B

Michelin Cross Competition S12

We haven't collected enough community discussion about this tire yet.

Specifications

Specs side by side

Attribute A · Cooper Discoverer AT3 XLT B · Michelin Cross Competition S12
CategoryPremium Touring All Season tireAll Season Motocross and Enduro tires
Vehicle typeSUV and 4x4Motorcycle
Sizes available3—
Rim diameters16″ – 20″—
Tread depth16 - 18/32″—
Treadwear warranty60,000 mi—
SidewallBlack Side Wall - Raised White Lettering—
Max pressure35 - 80 psi—
Final verdict

Which one should you actually buy?

Cooper

Michelin

Winner: Cooper Discoverer AT3 XLT — better dry, comfort and handling. It leads or ties in every category we score.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 XLT scores 97 vs 50 on dry.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 XLT scores 93 vs 50 on comfort.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 XLT scores 94 vs 60 on handling.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 XLT scores 94 vs 80 on wet.

Tire A · Cooper Discoverer AT3 XLT
Tire B · Michelin Cross Competition S12

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.