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Kumho Solus HS51 Harmony Sports looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Kumho Ecsta HS51 vs Kumho Solus HS51 Harmony Sports — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 6 + 1 road tests and 1,663 + 5 owner reviews. How we score

Ecsta HS51 is ahead, 73–67

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Kumho Ecsta HS51
Tire AKumho

Ecsta HS51

Summer

Tests 75 · 6 tests Owners 69 · 1,663 reviews

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

Kumho Solus HS51 Harmony Sports
Tire BKumho

Solus HS51 Harmony Sports

Summer

Provisional

Tests 68 · 1 test Owners 67 · 5 reviews

Best test result: #1 of 10 in 2020 Teknikens 17 Inch Summer Tyre Test (straight aquaplaning)

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 HS51Solus HS51 Harmony Sports
    Professional tests (TWG score) · 4 / 1 tests7665
    Reviews found online7166

    Ecsta HS51: 60% × 76.4 + 40% × 70.5 = 74

    Solus HS51 Harmony Sports: 60% × 65.4 + 40% × 65.8 = 66

  2. 76

    Wet

    Ecsta HS51 +3
    73
    Why this score
    SourceEcsta HS51Solus HS51 Harmony Sports
    Professional tests (TWG score) · 4 / 1 tests7975
    Reviews found online7370

    Ecsta HS51: 60% × 79 + 40% × 72.7 = 76

    Solus HS51 Harmony Sports: 60% × 75.3 + 40% × 70.4 = 73

  3. 69

    Comfort

    Ecsta HS51 +10
    59
    Why this score
    SourceEcsta HS51Solus HS51 Harmony Sports
    Professional tests (TWG score) · – / 1 tests≈ 69 (est.)51
    Reviews found online6971

    Ecsta HS51: 60% × 69.1 (est.) + 40% × 69.1 = 69

    Solus HS51 Harmony Sports: 60% × 51 + 40% × 70.7 = 59

    No road tests of comfort for Ecsta HS51. 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 HS51Solus HS51 Harmony Sports
    Professional tests (TWG score) · 2 / – tests65–
    Reviews found online≈ 67 (est.)–

    Ecsta HS51: 60% × 65.2 + 40% × 67.3 (est.) = 66

    No owner ratings of noise for Ecsta HS51. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

  5. 70

    Treadwear

    Ecsta HS51 +4
    66
    Why this score
    SourceEcsta HS51Solus HS51 Harmony Sports
    Professional tests (TWG score) · 4 / – tests73≈ 66 (est.)
    Reviews found online6566

    Ecsta HS51: 60% × 72.7 + 40% × 64.9 = 70

    Solus HS51 Harmony Sports: 60% × 65.7 (est.) + 40% × 65.9 = 66

    No road tests of treadwear for Solus HS51 Harmony Sports. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  6. 68

    Handling (owners)

    Ecsta HS51 +7
    61
    Why this score
    SourceEcsta HS51Solus HS51 Harmony Sports
    Reviews found online6861
Scores at a glance
CategoryKumho Ecsta HS51Kumho Solus HS51 Harmony Sports
Relative Score 73 67
Dry 74 66
Wet 76 73
Comfort 69 59
Noise 66 –
Treadwear 70 66
Handling (owners) 68 61

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
Recomputed
Headline score

Ecsta HS51

Solus HS51 Harmony Sports

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.

DisciplineCategoryEcsta HS51Solus HS51 Harmony SportsΔHead-to-head
Dry Braking Dry 98% #3/53 · 2021 53 Summer Tyre Braking Test 91% #9/10 · 2020 Teknikens 17 Inch Summer Tyre Test – Different tests
Straight Aquaplaning Wet 99% #2/20 · 2021 Auto Bild 16 Inch Summer Tyre Test 100% #1/10 · 2020 Teknikens 17 Inch Summer Tyre Test – Different tests
Wet Braking Wet 97% #6/53 · 2021 53 Summer Tyre Braking Test 95% #5/10 · 2020 Teknikens 17 Inch Summer Tyre Test – Different tests
Wet Handling Wet 100% #1/20 · 2021 Auto Bild 16 Inch Summer Tyre Test 99% #4/10 · 2020 Teknikens 17 Inch Summer Tyre Test – Different tests
Also published by the testers (not in the score)
Rolling Resistance Efficiency 75% #20/20 · 2021 Auto Bild 16 Inch Summer Tyre Test 94% #10/10 · 2020 Teknikens 17 Inch Summer Tyre Test – Different tests
Overall Ranking Overall #3/11 2021 Autonavigator Summer Tire Test R16 #7/10 2020 Teknikens 17 Inch Summer Tyre Test – Different tests

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 Solus HS51 Harmony Sports

Pros

  • High level of ride comfort and low noise levels
  • Excellent value for money compared to premium brands
  • Strong wet weather performance

Cons

  • Excessive sidewall softness leading to a 'wobbling' or unstable sensation
  • Noticeable decline in grip levels before the tread is fully worn
  • Inconsistent handling performance depending on axle placement
All owner themes in the Solus HS51 Harmony Sports review

Specs side by side

Attribute A · Kumho Ecsta HS51 B · Kumho Solus HS51 Harmony Sports
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available27—
Rim diameters14″ – 18″—

Which one should you actually buy?

Kumho Ecsta HS51

Kumho Solus HS51 Harmony Sports

Winner: Kumho Ecsta HS51 — better comfort, dry and handling. It leads or ties in every category we score. Kumho Solus HS51 Harmony Sports rests on little evidence so far (1 test, 5 reviews), so read this result as provisional.

Pick tire A You want the most comfortable ride

Kumho Ecsta HS51 scores 69 vs 59 on comfort.

Pick tire A You want the most grip on dry roads

Kumho Ecsta HS51 scores 74 vs 66 on dry.

Pick tire A You enjoy sharp, responsive handling

Kumho Ecsta HS51 scores 68 vs 61 on handling.

Pick tire A You want the longest tread life

Kumho Ecsta HS51 scores 70 vs 66 on treadwear.

Tire A · Kumho Ecsta HS51
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Tire B · Kumho Solus HS51 Harmony Sports
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Ecsta HS51 or Solus HS51 Harmony Sports?

Which is better in the wet, Ecsta HS51 or Solus HS51 Harmony Sports?

Kumho Ecsta HS51, 76 vs 73 on our wet score.

Which grips better on dry roads, Ecsta HS51 or Solus HS51 Harmony Sports?

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

Which is more comfortable, Ecsta HS51 or Solus HS51 Harmony Sports?

Kumho Ecsta HS51, 69 vs 59 on our comfort score.

Which lasts longer, Ecsta HS51 or Solus HS51 Harmony Sports?

Kumho Ecsta HS51, 70 vs 66 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