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Cooper Discoverer AT3 XLT vs Kumho Road Venture AT51 — Compared

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

Discoverer AT3 XLT is ahead, 76–66

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Tire ACooper

Discoverer AT3 XLT

Premium Touring All Season tire

Tests – · none yet Owners 80 · 800 reviews

“Cooper adventurer (pep boys exclusive version of the discoverer), and then Cooper discoverer at3 xlt have been the tires on my tundra for the last +10yrs. I have put 80-100k on each set. I tow a smaller camp trailer regularly. They discontinued that tire, so I'm going to try the stronghold AT next.”

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 +11
    67
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture AT51
    Reviews found online8467
  2. 80

    Wet

    Discoverer AT3 XLT +11
    69
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture AT51
    Reviews found online8469
  3. 70

    Snow

    Discoverer AT3 XLT +1
    69
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture AT51
    Reviews found online7068
  4. 74

    Comfort

    Discoverer AT3 XLT +8
    66
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture AT51
    Reviews found online7962
  5. 72

    Noise

    Discoverer AT3 XLT +8
    64
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture AT51
    Reviews found online8159
  6. 72

    Treadwear

    Discoverer AT3 XLT +11
    61
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture AT51
    Reviews found online7757
  7. 78

    Handling

    Discoverer AT3 XLT +16
    62
    Why this score
    SourceDiscoverer AT3 XLTRoad Venture AT51
    Reviews found online7862
Scores at a glance
CategoryCooper Discoverer AT3 XLTKumho Road Venture AT51
Relative Score 76 66
Dry 78 67
Wet 80 69
Snow 70 69
Comfort 74 66
Noise 72 64
Treadwear 72 61
Handling 78 62

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 AT51

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 AT51

Pros

  • Exceptional value and affordable price point compared to premium competitors
  • Impressive traction and confidence in snow and winter conditions
  • Quiet and smooth highway ride with minimal road noise for an all-terrain tire

Cons

  • Faster-than-expected tread wear for some users under heavy or everyday use
  • Poor self-cleaning capabilities in deep or heavy mud
  • Reduced wet traction and potential slippage when the tread wears low
All owner themes in the Road Venture AT51 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 members report high satisfaction with the Cooper Discoverer AT3 XLT, highlighting its quiet ride, long tread life, and strong winter performance. Several owners praise its smooth ride quality and durability under towing conditions compared to rival all-terrain tires. Discussion also commonly centers around sizing, fitment, and snow ratings.

r/f150 ·51 upvotes ·2021-12-30

“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
r/ram_trucks ·22 upvotes ·2021-11-19

“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”
f150forum.com

“Quote: Originally Posted by SodiumMonkey Thanks for the reply. I actually read through your entire build thread last night. Wow. Awesome stuff there. I’m planning on keeping the OEM Platinum trim 20” wheels. So I could run the Discoverer AT3 XLT 275/65 R20 without any rub at all with either a 2” spacer level or something like this kit from Fox? I don’t want to trim anything and don’t want any rub even when suspension is flexed. It seems like most info online indicates a 33” tire is the max for a 2” level and no rubbing. I believe the 275/65 R20 is a 34” tire. Thanks for the advice! I only ever rubbed with my 285/65R20s when I was reversing and turning right down an angled driveway, on the street and flat ground it never rubbed. Offroad is where I had the most rubbing but that is expected. A 275/65R20 is what a lot of people run with only a 2 inch level. It fills the wheel wells nice and it will very rarely rub in any on road circumstance, no matter how you level the truck. A 33" tire is too small in my personal opinion.”
Top themes
#low road noise#tread longevity and wear#snow and winter traction#tire sizing and fitment#ride quality and comfort#towing performance

Based on 13 community posts

Tire B

Kumho Road Venture AT51

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 AT51
CategoryPremium Touring All Season tire—
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available410
Rim diameters16″ – 20″15″ – 18″
Tread depth16 - 18/32″13.5/32″
UTQG—540 A A
Treadwear warranty60,000 mi55,000 mi
SidewallBlack Side Wall - Raised White LetteringBlackwall
Max pressure35 - 80 psi65 psi

Which one should you actually buy?

Cooper Discoverer AT3 XLT

Kumho Road Venture AT51

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 62 on handling.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 XLT scores 78 vs 67 on dry.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 XLT scores 80 vs 69 on wet.

Pick tire A You want the longest tread life

Cooper Discoverer AT3 XLT scores 72 vs 61 on treadwear.

Tire A · Cooper Discoverer AT3 XLT
Check price on Amazon
Tire B · Kumho Road Venture AT51
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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