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Cooper Discoverer STT PRO vs Cooper Discoverer S/T Maxx — Compared

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

Discoverer S/T Maxx leads, 65–63 Narrow edge

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Tire ACooper

Discoverer STT PRO

All Season

Tests – · none yet Owners 60 · 421 reviews

“Installed the stt pro's on the 10 duramax , so far I really like the tires . Put them to the test backcountry camping (towing 5th wheel) & they were good in the mud & towing. They arent the quietest tires , but did quiet down after some miles. Comparable in noise to the trail grapplers or slightly louder, they weren't squirmy when new, unlike the trailer grapplers I had on my old dodge diesel for the 1st few hundred miles Sent from AutoGuide.com Free App”

Tire BCooper

Discoverer S/T Maxx

All Season

Tests – · none yet Owners 64 · 325 reviews

“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 .”

Category by category

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

  1. 65

    Dry

    Discoverer S/T Maxx +5
    70
    Why this score
    SourceDiscoverer STT PRODiscoverer S/T Maxx
    Reviews found online6371
  2. 67

    Wet

    Discoverer S/T Maxx +3
    70
    Why this score
    SourceDiscoverer STT PRODiscoverer S/T Maxx
    Reviews found online6670
  3. 66

    Snow

    Discoverer STT PRO +2
    64
    Why this score
    SourceDiscoverer STT PRODiscoverer S/T Maxx
    Reviews found online6461
  4. 61

    Comfort

    Discoverer S/T Maxx +2
    63
    Why this score
    SourceDiscoverer STT PRODiscoverer S/T Maxx
    Reviews found online5258
  5. 54

    Noise

    Discoverer S/T Maxx +5
    59
    Why this score
    SourceDiscoverer STT PRODiscoverer S/T Maxx
    Reviews found online3448
  6. 63

    Treadwear

    Discoverer S/T Maxx +3
    66
    Why this score
    SourceDiscoverer STT PRODiscoverer S/T Maxx
    Reviews found online6266
  7. 54

    Handling

    Discoverer STT PRO +3
    51
    Why this score
    SourceDiscoverer STT PRODiscoverer S/T Maxx
    Reviews found online5451
Scores at a glance
CategoryCooper Discoverer STT PROCooper Discoverer S/T Maxx
Relative Score 63 65
Dry 65 70
Wet 67 70
Snow 66 64
Comfort 61 63
Noise 54 59
Treadwear 63 66
Handling 54 51

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

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Headline score

Discoverer STT PRO

Discoverer S/T Maxx

Pros, cons & observations

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

Tire A Discoverer STT PRO

Pros

  • Outstanding off-road traction in mud, rocks, and dirt
  • Surprisingly low road noise and smooth ride for a mud-terrain tire
  • Aggressive and appealing visual design with tough sidewalls

Cons

  • Can be difficult to balance properly, leading to vibrations for some users
  • Faster tread wear reported by a subset of drivers under heavy use
  • Reduced traction in specific conditions like deep sand or packed snow/ice
All owner themes in the Discoverer STT PRO review

Tire B 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

What real owners are saying

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

Tire A

Cooper Discoverer STT PRO

Positive

Community members widely praise the Cooper Discoverer STT PRO for its exceptional off-road traction, towing capability, and dependable handling in mud, rain, and snow. While users note it balances well and rides comfortably for a mud-terrain tire, the most common criticisms involve pavement road noise that increases with wear and concerns regarding tread life on heavy trucks.

powerstroke.org ·2022-04-14

“I have used Cooper Discoverer STT Pro's in mud, rain, snow, ice, sand, etc. They have performed just fine in each. They are a bit louder on the highway, but it's not that noticable. -jokester”
ford-trucks.com

“I had a set in 295/70R18. The first 50% was good all around. However they got really noisy as they wore to the point you couldn't hold a conversation in the cab. At that point they had to go.”
therangerstation.com ·1 upvote ·2019-09-30

“They (Cooper Discover SST Pro's) are louder than an all season for sure but not louder than my Buckshots that I ran years ago. A friend has them on his truck, '08 Ford F250 Super Duty diesel, his only complaint is how loud they were for him since the truck drives on pavement most times except on a construction site. I have driven this truck numerous times and the Cooper SST pro's have great traction both on and off road but seem, IMO, to wear quickly on pavement, for the reasons Jim Oaks mentioned, so He will not get them for his application again.... Wish they made them in my size though. So in short I agree with Jim that these are a good tire especially for its intended application.”
Top themes
#off-road traction#highway road noise#mud and snow performance#tread wear life#heavy truck towing#balancing and ride quality

Based on 38 community posts

Tire B

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.

bobistheoilguy.com ·2019-06-30

“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.”
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

Specs side by side

Attribute A · Cooper Discoverer STT PRO B · Cooper Discoverer S/T Maxx
CategoryAll SeasonAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available2330
Rim diameters16″ – 20″16″ – 20″
Tread depth18 - 22/32″19/32″
SidewallBlack Side Wall - Raised White LetteringBlack Side Wall - Raised Outline White Lettering
Max pressure35 - 80 psi35 - 80 psi

Which one should you actually buy?

Cooper Discoverer STT PRO

Cooper Discoverer S/T Maxx

Winner: Cooper Discoverer S/T Maxx — better dry, noise and wet. Pick the Cooper Discoverer STT PRO if handling matters most to you.

Pick tire B You want the most grip on dry roads

Cooper Discoverer S/T Maxx scores 70 vs 65 on dry.

Pick tire B You want a quieter cabin

Cooper Discoverer S/T Maxx scores 59 vs 54 on noise.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer STT PRO scores 54 vs 51 on handling.

Pick tire B Your priority is wet-weather safety

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

Tire A · Cooper Discoverer STT PRO
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Tire B · Cooper Discoverer S/T Maxx
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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.

65

Narrow edge

Discoverer S/T Maxx

Amazon