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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.
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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
Why this score
| Source | Discoverer AT3 XLT | Cross Competition S12 |
|---|---|---|
| Tire Rack owners | 89 | – |
| Tyre Reviews owners | 83 | 50 |
| SimpleTire owners | 98 | – |
| America's Tire owners | 97 | – |
Wet
Why this score
| Source | Discoverer AT3 XLT | Cross Competition S12 |
|---|---|---|
| Tire Rack owners | 87 | – |
| Tyre Reviews owners | 78 | 80 |
| SimpleTire owners | 97 | – |
| America's Tire owners | 94 | – |
Snow
Why this score
| Source | Discoverer AT3 XLT | Cross Competition S12 |
|---|---|---|
| Tire Rack owners | 92 | – |
| Tyre Reviews owners | 70 | – |
| SimpleTire owners | 90 | – |
Comfort
Why this score
| Source | Discoverer AT3 XLT | Cross Competition S12 |
|---|---|---|
| Tire Rack owners | 83 | – |
| Tyre Reviews owners | 88 | 50 |
| SimpleTire owners | 96 | – |
| America's Tire owners | 93 | – |
Noise
Why this score
| Source | Discoverer AT3 XLT | Cross Competition S12 |
|---|---|---|
| SimpleTire owners | 92 | – |
| America's Tire owners | 93 | – |
Treadwear
Why this score
| Source | Discoverer AT3 XLT | Cross Competition S12 |
|---|---|---|
| Tire Rack owners | 87 | – |
| Tyre Reviews owners | 78 | 80 |
| SimpleTire owners | 91 | – |
| America's Tire owners | 93 | – |
Handling
Why this score
| Source | Discoverer AT3 XLT | Cross Competition S12 |
|---|---|---|
| Tyre Reviews owners | 83 | 60 |
| America's Tire owners | 94 | – |
Scores at a glance
| Category | Cooper Discoverer AT3 XLT | Michelin 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.
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.
Tire A
Tire B
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
Not enough owner reviews yet to extract themes.
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.
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Cooper Discoverer AT3 XLT
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.
“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
“Put some new tires on the XD today. Cooper Discoverer AT3 XLT in 275/70R18. I usually run BFG KO2s on my trucks but wanted to try something different this time.”
“Cooper Discoverer AT3 XLT Picked up a set of Discoverer AT3 XLT from simple tire. With the 4th of July discounts all 4 were under 1k before taxes. I had the AT3 4S on a previous ram and they held up so I’m expecting good things here.”
“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”
Based on 7 community posts
Michelin Cross Competition S12
We haven't collected enough community discussion about this tire yet.
Specs side by side
| Attribute | A · Cooper Discoverer AT3 XLT | B · Michelin Cross Competition S12 |
|---|---|---|
| Category | Premium Touring All Season tire | All Season Motocross and Enduro tires |
| Vehicle type | SUV and 4x4 | Motorcycle |
| Sizes available | 3 | — |
| Rim diameters | 16″ – 20″ | — |
| Tread depth | 16 - 18/32″ | — |
| Treadwear warranty | 60,000 mi | — |
| Sidewall | Black Side Wall - Raised White Lettering | — |
| Max pressure | 35 - 80 psi | — |
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.
Cooper Discoverer AT3 XLT scores 97 vs 50 on dry.
Cooper Discoverer AT3 XLT scores 93 vs 50 on comfort.
Cooper Discoverer AT3 XLT scores 94 vs 60 on handling.
Cooper Discoverer AT3 XLT scores 94 vs 80 on wet.
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.