tirewheelguide
Head-to-head Updated

Cooper Discoverer All Season vs Kumho Crugen HT51 — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 6 + 2 road tests and 1 + 164 owner reviews. How we score

Discoverer All Season leads, 68–65 Narrow edge

Check price on Amazon · Discoverer All Season or Crugen HT51 on Amazon
Add your size for an exact match
/R

Both Amazon links then search this exact size.

TireWheelGuide may earn a commission from purchases made through these links.

Cooper Discoverer All Season
Tire ACooper

Discoverer All Season

All Season

± 7

Tests 66 · 6 tests Owners 71 · 1 review

Best test result: #1 of 9 in 2022 ACE/ARBÖ/GTÜ All-Season Tire Test R17 (straight aquaplaning)

Kumho Crugen HT51
Tire BKumho

Crugen HT51

All Season

± 9

Tests 55 · 2 tests Owners 75 · 164 reviews

Best test result: #2 of 9 in 2024 Tire Rack Highway All Season Tyre Test (dry circle)

Category by category

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

  1. 72

    Dry

    Discoverer All Season +7
    65
    Why this score
    SourceDiscoverer All SeasonCrugen HT51
    Professional tests (TWG score) · 6 / 1 tests7358
    Reviews found online7176

    Discoverer All Season: 60% × 72.9 + 40% × 70.5 = 72

    Crugen HT51: 60% × 58.2 + 40% × 75.9 = 65

  2. 73

    Wet

    Discoverer All Season +6
    67
    Why this score
    SourceDiscoverer All SeasonCrugen HT51
    Professional tests (TWG score) · 6 / 1 tests7360
    Reviews found online7478

    Discoverer All Season: 60% × 73.2 + 40% × 73.6 = 73

    Crugen HT51: 60% × 59.5 + 40% × 78.1 = 67

  3. 52

    Snow

    Discoverer All Season +3
    49
    Why this score
    SourceDiscoverer All SeasonCrugen HT51
    Professional tests (TWG score) · 4 / 1 tests4136
    Reviews found online6970

    Discoverer All Season: 60% × 41.2 + 40% × 68.8 = 52

    Crugen HT51: 60% × 35.9 + 40% × 69.5 = 49

  4. 67

    Comfort

    Crugen HT51 +3
    70
    Why this score
    SourceDiscoverer All SeasonCrugen HT51
    Professional tests (TWG score)≈ 68 (est.)≈ 69 (est.)
    Reviews found online6670

    Discoverer All Season: 40% × 68.2 (est.) + 60% × 65.9 = 67

    Crugen HT51: 40% × 69.1 (est.) + 60% × 70.4 = 70

    No road tests of comfort for Discoverer All Season. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.21).

    No road tests of comfort for Crugen HT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.21).

  5. 73

    Noise

    Discoverer All Season +2
    71
    Why this score
    SourceDiscoverer All SeasonCrugen HT51
    Professional tests (TWG score) · 4 / – tests77≈ 66 (est.)
    Reviews found online≈ 66 (est.)79

    Discoverer All Season: 60% × 77.1 + 40% × 66.3 (est.) = 73

    Crugen HT51: 60% × 66.3 (est.) + 40% × 78.9 = 71

    No owner ratings of noise for Discoverer All Season. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

    No road tests of noise for Crugen HT51. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 66

    Treadwear

    Level
    66
    Why this score
    SourceDiscoverer All SeasonCrugen HT51
    Professional tests (TWG score) · 1 / 1 tests6458
    Reviews found online7076

    Discoverer All Season: 60% × 64 + 40% × 70 = 66

    Crugen HT51: 60% × 58.4 + 40% × 76.4 = 66

  7. 71

    Handling (owners)

    Crugen HT51 +3
    74
    Why this score
    SourceDiscoverer All SeasonCrugen HT51
    Reviews found online7174
  8. 34

    Efficiency

    No comparison
    –
    Why this score
    SourceDiscoverer All SeasonCrugen HT51
    Professional tests (TWG score) · 4 / – tests34–
Scores at a glance
CategoryCooper Discoverer All SeasonKumho Crugen HT51
Relative Score 68 65
Dry 72 65
Wet 73 67
Snow 52 49
Comfort 67 70
Noise 73 71
Treadwear 66 66
Handling (owners) 71 74
Efficiency 34 –

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

Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Recomputed
Headline score
± 7

Discoverer All Season

± 9

Crugen HT51

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

The professional test results behind the scores

Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.

DisciplineCategoryDiscoverer All SeasonCrugen HT51ΔHead-to-head
Dry Braking Dry 95% #4/12 · 2024 Minivan / SUV All Season Tyre Test 94% #7/9 · 2024 Tire Rack Highway All Season Tyre Test – Different tests
Wet Braking Wet 97% #4/12 · 2024 Minivan / SUV All Season Tyre Test 91% #8/9 · 2024 Tire Rack Highway All Season Tyre Test – Different tests
Wet Circle Wet 98% #6/12 · 2024 Minivan / SUV All Season Tyre Test 91% #7/9 · 2024 Tire Rack Highway All Season Tyre Test – Different tests
Wet Handling Wet 98% #7/12 · 2024 Minivan / SUV All Season Tyre Test 94% #9/9 · 2024 Tire Rack Highway All Season Tyre Test – Different tests
Snow Braking Snow 95% #5/12 · 2024 Minivan / SUV All Season Tyre Test 82% #23/30 · 2026 Tire Rack All Terrain Tyre Snow Test – Different tests
Snow Handling Snow 97% #3/12 · 2024 Minivan / SUV All Season Tyre Test 86% #8/9 · 2024 Tire Rack Highway All Season Tyre Test – Different tests
Snow Traction Snow 95% #8/12 · 2024 Minivan / SUV All Season Tyre Test 88% #8/30 · 2026 Tire Rack All Terrain Tyre Snow Test – Different tests
Also published by the testers (not in the score)
Overall Ranking Overall #7/12 2024 Minivan / SUV All Season Tyre Test #9/30 2026 Tire Rack All Terrain Tyre Snow Test – Different tests

Pros, cons & observations

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

Tire A Discoverer All Season

Not enough owner reviews yet to extract themes.

Tire B Crugen HT51

Pros

  • Exceptional value and lower price point compared to premium competitors
  • Smooth, quiet, and comfortable highway ride
  • Strong dry, wet, and winter/snow traction

Cons

  • Slightly vague or 'squishy' steering feel/sidewall stiffness compared to some OEM tires
  • Potential negative impact on fuel economy (decreased MPG for some truck owners)
  • Occasional reports of accelerated shoulder wear or balancing issues
All owner themes in the Crugen HT51 review

Specs side by side

Attribute A · Cooper Discoverer All Season B · Kumho Crugen HT51
CategoryAll SeasonAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available—44
Rim diameters—15″ – 22″
Tread depth—12.5/32″
UTQG—720 A A
Treadwear warranty—70,000 mi
Sidewall—Blackwall
Max pressure—50 psi

Which one should you actually buy?

Cooper Discoverer All Season

Kumho Crugen HT51

Narrow edge: Cooper Discoverer All Season — better dry, wet and snow. Pick the Kumho Crugen HT51 if comfort matters most to you.

Pick tire A You want the most grip on dry roads

Cooper Discoverer All Season scores 72 vs 65 on dry.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer All Season scores 73 vs 67 on wet.

Pick tire A You drive through snowy winters

Cooper Discoverer All Season scores 52 vs 49 on snow.

Pick tire B You want the most comfortable ride

Kumho Crugen HT51 scores 70 vs 67 on comfort.

Tire A · Cooper Discoverer All Season
Check price on Amazon
Tire B · Kumho Crugen HT51
Check price on Amazon

TireWheelGuide may earn a commission from purchases made through these links.

Discoverer All Season or Crugen HT51?

Which is better in the wet, Discoverer All Season or Crugen HT51?

Cooper Discoverer All Season, 73 vs 67 on our wet score.

Which grips better on dry roads, Discoverer All Season or Crugen HT51?

Cooper Discoverer All Season, 72 vs 65 on our dry score.

Which is better in snow, Discoverer All Season or Crugen HT51?

Cooper Discoverer All Season, 52 vs 49 on our snow score.

Which is quieter, Discoverer All Season or Crugen HT51?

Neither, by our numbers: 73 vs 71 on the noise score, within 3 points.

Which is more comfortable, Discoverer All Season or Crugen HT51?

Kumho Crugen HT51, 70 vs 67 on our comfort score.

Which lasts longer, Discoverer All Season or Crugen HT51?

Neither, by our numbers: 66 vs 66 on the treadwear score, within 3 points.

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.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology