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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

Bridgestone Ecopia EP150 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 0 + 1 road tests and 75 + 5 owner reviews. How we score

Solus HS51 Harmony Sports is ahead, 67–59

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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. 57

    Dry

    Solus HS51 Harmony Sports +9
    66
    Why this score
    SourceEcopia EP150Solus HS51 Harmony Sports
    Professional tests (TWG score) · – / 1 tests≈ 61 (est.)65
    Reviews found online5266

    Ecopia EP150: 60% × 61.3 (est.) + 40% × 51.7 = 57

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

    No road tests of dry for Ecopia EP150. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 61

    Wet

    Solus HS51 Harmony Sports +12
    73
    Why this score
    SourceEcopia EP150Solus HS51 Harmony Sports
    Professional tests (TWG score) · – / 1 tests≈ 63 (est.)75
    Reviews found online5870

    Ecopia EP150: 60% × 63.1 (est.) + 40% × 57.9 = 61

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

    No road tests of wet for Ecopia EP150. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. 49

    Snow

    No comparison
    –
    Why this score
    SourceEcopia EP150Solus HS51 Harmony Sports
    Professional tests (TWG score)≈ 58 (est.)–
    Reviews found online35–

    Ecopia EP150: 60% × 58.3 (est.) + 40% × 34.9 = 49

    No road tests of snow for Ecopia EP150. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 61

    Comfort

    Ecopia EP150 +2
    59
    Why this score
    SourceEcopia EP150Solus HS51 Harmony Sports
    Professional tests (TWG score) · – / 1 tests≈ 66 (est.)51
    Reviews found online5471

    Ecopia EP150: 60% × 66.4 (est.) + 40% × 53.5 = 61

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

    No road tests of comfort for Ecopia EP150. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 62

    Noise

    No comparison
    –
    Why this score
    SourceEcopia EP150Solus HS51 Harmony Sports
    Professional tests (TWG score)≈ 67 (est.)–
    Reviews found online55–

    Ecopia EP150: 60% × 67.3 (est.) + 40% × 54.7 = 62

    No road tests of noise for Ecopia EP150. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 58

    Treadwear

    Solus HS51 Harmony Sports +8
    66
    Why this score
    SourceEcopia EP150Solus HS51 Harmony Sports
    Professional tests (TWG score)≈ 62 (est.)≈ 66 (est.)
    Reviews found online5266

    Ecopia EP150: 60% × 61.6 (est.) + 40% × 52.4 = 58

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

    No road tests of treadwear for Ecopia EP150. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

    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).

  7. 55

    Handling (owners)

    Solus HS51 Harmony Sports +6
    61
    Why this score
    SourceEcopia EP150Solus HS51 Harmony Sports
    Reviews found online5561
Scores at a glance
CategoryBridgestone Ecopia EP150Kumho Solus HS51 Harmony Sports
Relative Score 59 67
Dry 57 66
Wet 61 73
Snow 49 –
Comfort 61 59
Noise 62 –
Treadwear 58 66
Handling (owners) 55 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
Neutral
NotLessNeutralImportantMost

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

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

Ecopia EP150

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.

DisciplineCategoryEcopia EP150Solus HS51 Harmony SportsΔHead-to-head
Also published by the testers (not in the score)
Overall Ranking Overall #4/16 2014 ADAC 175/65 R14 Summer Tyre Test #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 Ecopia EP150

Pros

  • High level of ride comfort and low-speed smoothness
  • Generally durable construction capable of handling potholes
  • Satisfactory dry-road handling for casual, daily driving

Cons

  • Frequently cited as dangerous or unpredictable in wet conditions
  • Noticeable increase in road noise as the tire ages
  • Inconsistent tread wear, with some users reporting premature failure
All owner themes in the Ecopia EP150 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 · Bridgestone Ecopia EP150 B · Kumho Solus HS51 Harmony Sports
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available24—
Rim diameters13″ – 17″—
UTQG200 B B—
SidewallBlackwall—

Which one should you actually buy?

Bridgestone Ecopia EP150

Kumho Solus HS51 Harmony Sports

Winner: Kumho Solus HS51 Harmony Sports — better wet, dry and treadwear. Where the Bridgestone Ecopia EP150 is ahead, it is by less than 3 points. Kumho Solus HS51 Harmony Sports rests on little evidence so far (1 test, 5 reviews), so read this result as provisional.

Pick tire B Your priority is wet-weather safety

Kumho Solus HS51 Harmony Sports scores 73 vs 61 on wet.

Pick tire B You want the most grip on dry roads

Kumho Solus HS51 Harmony Sports scores 66 vs 57 on dry.

Pick tire B You want the longest tread life

Kumho Solus HS51 Harmony Sports scores 66 vs 58 on treadwear.

Pick tire B You enjoy sharp, responsive handling

Kumho Solus HS51 Harmony Sports scores 61 vs 55 on handling.

Tire A · Bridgestone Ecopia EP150
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Tire B · Kumho Solus HS51 Harmony Sports
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Ecopia EP150 or Solus HS51 Harmony Sports?

Which is better in the wet, Ecopia EP150 or Solus HS51 Harmony Sports?

Kumho Solus HS51 Harmony Sports, 73 vs 61 on our wet score.

Which grips better on dry roads, Ecopia EP150 or Solus HS51 Harmony Sports?

Kumho Solus HS51 Harmony Sports, 66 vs 57 on our dry score.

Which is more comfortable, Ecopia EP150 or Solus HS51 Harmony Sports?

Neither, by our numbers: 61 vs 59 on the comfort score, within 3 points.

Which lasts longer, Ecopia EP150 or Solus HS51 Harmony Sports?

Kumho Solus HS51 Harmony Sports, 66 vs 58 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