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Cooper Discoverer AT3 XLT vs Kumho Road Venture MT KL71 — Compared

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

Discoverer AT3 XLT is ahead, 76–69

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Tire ACooper

Discoverer AT3 XLT

Premium Touring All Season tire

Tests – · none yet Owners 80 · 800 reviews

“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”

Category by category

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

  1. 78

    Dry

    Discoverer AT3 XLT +7
    71
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture MT KL71
    Reviews found online8473
  2. 80

    Wet

    Discoverer AT3 XLT +7
    73
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture MT KL71
    Reviews found online8474
  3. 70

    Snow

    Discoverer AT3 XLT +3
    67
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture MT KL71
    Reviews found online7065
  4. 74

    Comfort

    Discoverer AT3 XLT +6
    68
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture MT KL71
    Reviews found online7967
  5. 72

    Noise

    Discoverer AT3 XLT +7
    65
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture MT KL71
    Reviews found online8064
  6. 72

    Treadwear

    Discoverer AT3 XLT +3
    69
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture MT KL71
    Reviews found online7772
  7. 78

    Handling

    Discoverer AT3 XLT +15
    63
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture MT KL71
    Reviews found online7863
Scores at a glance
CategoryCooper Discoverer AT3 XLTKumho Road Venture MT KL71
Relative Score 76 69
Dry 78 71
Wet 80 73
Snow 70 67
Comfort 74 68
Noise 72 65
Treadwear 72 69
Handling 78 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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Headline score

Discoverer AT3 XLT

Road Venture MT KL71

Pros, cons & observations

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

Tire A Discoverer AT3 XLT

Pros

  • Significantly lower road noise than comparable aggressive all-terrain tires
  • Excellent wet weather, snow, and slush traction
  • Sturdy sidewalls and stable performance when towing heavy loads

Cons

  • Some users report difficulty with balancing, leading to vibrations or a rough ride
  • Tread life occasionally falls short of expectations for certain drivers
  • Can struggle or get gummed up in deep mud
All owner themes in the Discoverer AT3 XLT review

Tire B Road Venture MT KL71

Pros

  • Unexpectedly low road noise for a mud-terrain tire
  • Outstanding off-road traction in mud, sand, and loose gravel
  • Aggressive, attractive tread pattern and sidewall design

Cons

  • Can become noisier over time as the tread wears down
  • Poor performance on ice
  • Aggressive tread and high traction can tear up delicate lawns and turf
All owner themes in the Road Venture MT KL71 review

What real owners are saying

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

Tire A

Cooper Discoverer AT3 XLT

Positive

Community opinion of the Cooper Discoverer AT3 XLT is overwhelmingly positive, with users frequently praising its smooth ride quality, exceptional quietness on the highway, and long-term durability compared to competitors like BFG KO2 and Toyo Open Country. Drivers also appreciate its solid value and performance when towing. A few users occasionally confuse the M+S marking with the Three-Peak Mountain Snowflake rating for severe winter conditions.

r/f150 ·51 upvotes ·2021-12-30

“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
r/Offroad ·1 upvote ·2025-10-02

“I’ve run Hankook dynapro’s, BFG ko2, Nokian outpost nat, and fallen wild peaks. Currently running Cooper discoverer AT3 XLT - they are definitely the quietest all terrains I’ve had. I would recommend them if they are available in your size - many places like simpletire or priority tire carry them.”
r/Trucks ·3 upvotes ·2021-03-26

“Are my Discoverer AT3 XLT snow rated? Going snowboarding and roads require snow tires or chains /cables. I was looking at the sidewall of my Cooper Discoverer XLT and saw there is a small M+S next to the tire size. Is it stupid to assume these are snow rated? I'm not trying to get a ticket for not having chains if I need them, which most places seem to be sold out locally.”
Top themes
#ride comfort#low road noise#tread longevity#winter and snow ratings#comparison to competitors#pricing and value#towing performance

Based on 8 community posts

Tire B

Kumho Road Venture MT KL71

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

Specs side by side

Attribute A · Cooper Discoverer AT3 XLT B · Kumho Road Venture MT KL71
CategoryPremium Touring All Season tireAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available4—
Rim diameters16″ – 20″—
Tread depth16 - 18/32″18/32″
Treadwear warranty60,000 mi—
SidewallBlack Side Wall - Raised White LetteringBlackwall
Max pressure35 - 80 psi80 psi

Which one should you actually buy?

Cooper Discoverer AT3 XLT

Kumho Road Venture MT KL71

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

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 XLT scores 78 vs 63 on handling.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 XLT scores 78 vs 71 on dry.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 XLT scores 80 vs 73 on wet.

Pick tire A You want a quieter cabin

Cooper Discoverer AT3 XLT scores 72 vs 65 on noise.

Tire A · Cooper Discoverer AT3 XLT
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Tire B · Kumho Road Venture MT KL71
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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.

76

Leads

Discoverer AT3 XLT

Amazon