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Head-to-head Updated

Kumho Ecsta HS51 vs Michelin Primacy LC — 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 + 0 road tests and 1,664 + 12 owner reviews. How we score

Ecsta HS51 is ahead, 73–67

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Kumho Ecsta HS51
Tire AKumho

Ecsta HS51

Summer

± 5

Tests 75 · 6 tests Owners 69 · 1,664 reviews

Best test result: #1 of 20 in 2021 Auto Bild 16 Inch Summer Tyre Test (wet handling)

Michelin Primacy LC
Tire BMichelin

Primacy LC

Summer

± 8Provisional

Tests – · none yet Owners 66 · 12 reviews

Category by category

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

  1. 74

    Dry

    Ecsta HS51 +8
    66
    Why this score
    SourceEcsta HS51Primacy LC
    Professional tests (TWG score) · 4 / – tests77≈ 67 (est.)
    Reviews found online6965

    Ecsta HS51: 60% × 76.6 + 40% × 68.9 = 74

    Primacy LC: 60% × 66.9 (est.) + 40% × 65.3 = 66

    No road tests of dry for Primacy LC. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 77

    Wet

    Ecsta HS51 +7
    70
    Why this score
    SourceEcsta HS51Primacy LC
    Professional tests (TWG score) · 4 / – tests79≈ 70 (est.)
    Reviews found online7270

    Ecsta HS51: 60% × 79.4 + 40% × 72.3 = 77

    Primacy LC: 60% × 70.4 (est.) + 40% × 70.1 = 70

    No road tests of wet for Primacy LC. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 68

    Comfort

    Primacy LC +1
    69
    Why this score
    SourceEcsta HS51Primacy LC
    Professional tests (TWG score)≈ 68 (est.)≈ 69 (est.)
    Reviews found online6870

    Ecsta HS51: 40% × 68.5 (est.) + 60% × 67.7 = 68

    Primacy LC: 40% × 68.8 (est.) + 60% × 69.5 = 69

    No road tests of comfort for Ecsta HS51 or Primacy LC. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  4. 66

    Noise

    No comparison
    –
    Why this score
    SourceEcsta HS51Primacy LC
    Professional tests (TWG score) · 2 / – tests65–
    Reviews found online≈ 66 (est.)–

    Ecsta HS51: 60% × 65.2 + 40% × 66.5 (est.) = 66

    No owner ratings of noise for Ecsta HS51. 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.

  5. 70

    Treadwear

    Ecsta HS51 +7
    63
    Why this score
    SourceEcsta HS51Primacy LC
    Professional tests (TWG score) · 4 / – tests73≈ 65 (est.)
    Reviews found online6561

    Ecsta HS51: 60% × 73.3 + 40% × 64.8 = 70

    Primacy LC: 60% × 64.7 (est.) + 40% × 61.2 = 63

    No road tests of treadwear for Primacy LC. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  6. 68

    Handling (owners)

    Ecsta HS51 +7
    61
    Why this score
    SourceEcsta HS51Primacy LC
    Reviews found online6861
  7. 57

    Efficiency

    No comparison
    –
    Why this score
    SourceEcsta HS51Primacy LC
    Professional tests (TWG score) · 2 / – tests57–
Scores at a glance
CategoryKumho Ecsta HS51Michelin Primacy LC
Relative Score 73 67
Dry 74 66
Wet 77 70
Comfort 68 69
Noise 66 –
Treadwear 70 63
Handling (owners) 68 61
Efficiency 57 –

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

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost

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

Neutral
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
± 5

Ecsta HS51

± 8

Primacy LC

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 Ecsta HS51

Pros

  • Impressive wet and dry weather traction
  • Excellent value for money compared to tier-one premium brands
  • Low road noise and enhanced ride comfort

Cons

  • Soft sidewalls can cause a wobbly or loose feeling during aggressive cornering
  • Some users experienced faster-than-expected tread wear on the front axle
  • Occasional complaints regarding poor steering feedback and high-speed handling at the limit
All owner themes in the Ecsta HS51 review

Tire B Primacy LC

Pros

  • Exceptional noise suppression and quiet operation
  • High level of ride comfort and cushioning
  • Low rolling resistance contributing to improved fuel economy

Cons

  • Soft sidewalls leading to increased body roll and wobbling
  • Vulnerability to damage from potholes and road hazards
  • High price point relative to some competitors
All owner themes in the Primacy LC review

Specs side by side

Attribute A · Kumho Ecsta HS51 B · Michelin Primacy LC
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available27—
Rim diameters14″ – 18″—

Which one should you actually buy?

Kumho Ecsta HS51

Michelin Primacy LC

Winner: Kumho Ecsta HS51 — better dry, wet and treadwear. Where the Michelin Primacy LC is ahead, it is by less than 3 points. Michelin Primacy LC rests on little evidence so far (0 tests, 12 reviews), so read this result as provisional.

Pick tire A You want the most grip on dry roads

Kumho Ecsta HS51 scores 74 vs 66 on dry.

Pick tire A Your priority is wet-weather safety

Kumho Ecsta HS51 scores 77 vs 70 on wet.

Pick tire A You want the longest tread life

Kumho Ecsta HS51 scores 70 vs 63 on treadwear.

Pick tire A You enjoy sharp, responsive handling

Kumho Ecsta HS51 scores 68 vs 61 on handling.

Tire A · Kumho Ecsta HS51
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Tire B · Michelin Primacy LC
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Ecsta HS51 or Primacy LC?

Which is better in the wet, Ecsta HS51 or Primacy LC?

Kumho Ecsta HS51, 77 vs 70 on our wet score.

Which grips better on dry roads, Ecsta HS51 or Primacy LC?

Kumho Ecsta HS51, 74 vs 66 on our dry score.

Which is more comfortable, Ecsta HS51 or Primacy LC?

Neither, by our numbers: 68 vs 69 on the comfort score, within 3 points.

Which lasts longer, Ecsta HS51 or Primacy LC?

Kumho Ecsta HS51, 70 vs 63 on our treadwear score.

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