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Head-to-head Updated

Cooper Discoverer S/T Maxx vs Toyo Open Country M/T — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Open Country M/T leads, 67–65 Narrow edge

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Tire ACooper

Discoverer S/T Maxx

All Season

Tests – · none yet Owners 64 · 325 reviews

“Interesting, I'm considering a Cooper Discoverer A/T3 Sport or Discoverer S/T Maxx in 245/70r16 for my Nissan. All of the reviews are excellent and have been recommended from friends using both types, one on little Suzuki Jimny and one on GC 2.7 diesel. According to them they are great both on pavement and off road, with GC driver being long time off roader.”

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 70

    Dry

    Discoverer S/T Maxx +3
    67
    Why this score
    SourceDiscoverer S/T MaxxOpen Country M/T
    Reviews found online7167
  2. 70

    Wet

    Level
    70
    Why this score
    SourceDiscoverer S/T MaxxOpen Country M/T
    Reviews found online7070
  3. 64

    Snow

    Open Country M/T +4
    68
    Why this score
    SourceDiscoverer S/T MaxxOpen Country M/T
    Reviews found online6166
  4. 63

    Comfort

    Open Country M/T +2
    65
    Why this score
    SourceDiscoverer S/T MaxxOpen Country M/T
    Reviews found online5861
  5. 59

    Noise

    Open Country M/T +6
    65
    Why this score
    SourceDiscoverer S/T MaxxOpen Country M/T
    Reviews found online4862
  6. 66

    Treadwear

    Discoverer S/T Maxx +1
    65
    Why this score
    SourceDiscoverer S/T MaxxOpen Country M/T
    Reviews found online6665
  7. 51

    Handling

    Open Country M/T +12
    63
    Why this score
    SourceDiscoverer S/T MaxxOpen Country M/T
    Reviews found online5163
Scores at a glance
CategoryCooper Discoverer S/T MaxxToyo Open Country M/T
Relative Score 65 67
Dry 70 67
Wet 70 70
Snow 64 68
Comfort 63 65
Noise 59 65
Treadwear 66 65
Handling 51 63

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

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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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Recomputed
Headline score

Discoverer S/T Maxx

Open Country M/T

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Discoverer S/T Maxx

Pros

  • Aggressive all-terrain tread pattern that excels in dirt, gravel, sand, and moderate mud
  • Surprisingly quiet and smooth ride on the highway for such a rugged tire
  • Exceptional sidewall strength and puncture resistance against sharp rocks and debris

Cons

  • Faster-than-expected tread wear for some users, particularly on heavier duty or lighter vehicles
  • Subpar wet pavement traction, specifically in cold or greasy conditions
  • Stiff ride quality and potential handling vagueness or steering pull if pressures are not meticulously tuned
All owner themes in the Discoverer S/T Maxx review

Tire B Open Country M/T

Pros

  • Exceptional off-road traction in mud, sand, gravel, and snow
  • Surprisingly low road noise and smooth ride quality for a mud-terrain tire
  • Rugged, durable sidewalls with high puncture resistance

Cons

  • High initial purchase price
  • Negative impact on vehicle fuel economy (MPG)
  • Reduced grip or slight slickness on wet pavement or icy roads
All owner themes in the Open Country M/T review

What real owners are saying

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

Tire A

Cooper Discoverer S/T Maxx

Positive

Community sentiment regarding the Cooper Discoverer S/T Maxx is largely positive, with drivers praising its off-road traction in mud and rocks, durability, and quiet on-road ride. Users frequently note its towing capability and solid performance, though some discuss questions about cornering feel, pricing, and available sizing options.

duramaxforum.com ·2012-09-10

“I have the 285/75-16 Discoverer MAXX on my 05 CCSB and I love them. They ride nice, are quiet and work well when hauling my Tractor . As far as the feeling when turning they do feel a little different but it has not affected the handeling of the truck at all. I def . recommend getting this tire .”
duramaxforum.com ·2012-09-10

“I have 285/75-r16 on my f-150 and love them. I've put them through hell (rocks, mud, sand, rim breaking in half and truck skidding down the road on it) and the have held up amazing. My old set of cooper st's last around 60k and still had a little life left. Ill never run any thing but coopers now. and for the record i had that tire checked out by 3 different tire shops and they all said it was fine.”
Top themes
#off road traction#durability and toughness#quiet highway ride#towing performance#cornering and handling feel#size availability

Based on 10 community posts

Tire B

Toyo Open Country M/T

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

Specs side by side

Attribute A · Cooper Discoverer S/T Maxx B · Toyo Open Country M/T
CategoryAll SeasonAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available3035
Rim diameters16″ – 20″16″ – 24″
Tread depth19/32″18 - 22/32″
SidewallBlack Side Wall - Raised Outline White LetteringBlack Side Wall
Max pressure35 - 80 psi35 - 80 psi

Which one should you actually buy?

Cooper Discoverer S/T Maxx

Toyo Open Country M/T

Winner: Toyo Open Country M/T — better handling, noise and snow. Pick the Cooper Discoverer S/T Maxx if dry matters most to you.

Pick tire B You enjoy sharp, responsive handling

Toyo Open Country M/T scores 63 vs 51 on handling.

Pick tire B You want a quieter cabin

Toyo Open Country M/T scores 65 vs 59 on noise.

Pick tire B You drive through snowy winters

Toyo Open Country M/T scores 68 vs 64 on snow.

Pick tire A You want the most grip on dry roads

Cooper Discoverer S/T Maxx scores 70 vs 67 on dry.

Tire A · Cooper Discoverer S/T Maxx
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Tire B · Toyo Open Country M/T
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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.

67

Narrow edge

Open Country M/T

Amazon