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Head-to-head Updated

Cooper Discoverer HT3 vs Sumitomo Tour+ LSW — Compared

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

Discoverer HT3 is ahead, 67–35

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Tire BSumitomo

Tour+ LSW

Summer Touring tires

Tests – · none yet Owners 21 · 7 reviews

Category by category

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

  1. 67

    Dry

    Discoverer HT3 +31
    36
    Why this score
    SourceDiscoverer HT3Tour+ LSW
    Reviews found online6619
  2. 72

    Wet

    Discoverer HT3 +35
    37
    Why this score
    SourceDiscoverer HT3Tour+ LSW
    Reviews found online7225
  3. 63

    Snow

    No comparison
    –
    Why this score
    SourceDiscoverer HT3Tour+ LSW
    Reviews found online58–
  4. 62

    Comfort

    Discoverer HT3 +19
    43
    Why this score
    SourceDiscoverer HT3Tour+ LSW
    Reviews found online5618
  5. 65

    Noise

    No comparison
    –
    Why this score
    SourceDiscoverer HT3Tour+ LSW
    Reviews found online64–
  6. 66

    Treadwear

    Discoverer HT3 +29
    37
    Why this score
    SourceDiscoverer HT3Tour+ LSW
    Reviews found online6517
  7. 64

    Handling

    Discoverer HT3 +42
    22
    Why this score
    SourceDiscoverer HT3Tour+ LSW
    Reviews found online6422
Scores at a glance
CategoryCooper Discoverer HT3Sumitomo Tour+ LSW
Relative Score 67 35
Dry 67 36
Wet 72 37
Snow 63 –
Comfort 62 43
Noise 65 –
Treadwear 66 37
Handling 64 22

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 HT3

Tour+ LSW

Only categories both tires have data for count toward the headline score.

Pros, cons & observations

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

Tire A Discoverer HT3

Pros

  • Smooth and comfortable ride quality
  • Excellent highway handling and wet-weather traction
  • Strong performance and stability while towing heavy fifth-wheel trailers

Cons

  • Some users reported higher-than-expected road noise on the highway
  • A few reviewers experienced faster tread wear than anticipated
  • Occasional complaints regarding isolated product defects such as blowouts
All owner themes in the Discoverer HT3 review

Tire B Tour+ LSW

Pros

  • Quiet and smooth ride quality
  • Competent performance in rain and snow for some users
  • Cost-effective alternative to premium brands

Cons

  • Severe and persistent vibration issues
  • Difficulty maintaining wheel balance
  • Reports of structural belt defects and blowouts
All owner themes in the Tour+ LSW review

Specs side by side

Attribute A · Cooper Discoverer HT3 B · Sumitomo Tour+ LSW
Category—Summer Touring tires
Vehicle typeSUV and 4x4Passenger Car / Crossover
Sizes available17—
Rim diameters15″ – 20″—
Tread depth14 - 15/32″—
Treadwear warranty50,000 mi—
SidewallBlack Side Wall—
Max pressure50 - 83 psi—

Which one should you actually buy?

Cooper Discoverer HT3

Sumitomo Tour+ LSW

Winner: Cooper Discoverer HT3 — better handling, wet and dry. It leads or ties in every category we score.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer HT3 scores 64 vs 22 on handling.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer HT3 scores 72 vs 37 on wet.

Pick tire A You want the most grip on dry roads

Cooper Discoverer HT3 scores 67 vs 36 on dry.

Pick tire A You want the longest tread life

Cooper Discoverer HT3 scores 66 vs 37 on treadwear.

Tire A · Cooper Discoverer HT3
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Tire B · Sumitomo Tour+ LSW
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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

Leads

Discoverer HT3

Amazon