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Kumho Solus Vier KH21 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Kumho Ecsta PA51 vs Kumho Solus Vier KH21 — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 1 + 0 road tests and 165 + 5 owner reviews. How we score

Ecsta PA51 leads, 68–65 Narrow edge

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Kumho Ecsta PA51
Tire AKumho

Ecsta PA51

All Season

Tests – · 1 test Owners 67 · 165 reviews

Category by category

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

  1. 68

    Dry

    Ecsta PA51 +2
    66
    Why this score
    SourceEcsta PA51Solus Vier KH21
    Professional tests (TWG score)≈ 68 (est.)≈ 66 (est.)
    Reviews found online6865

    Ecsta PA51: 60% × 67.9 (est.) + 40% × 68.2 = 68

    Solus Vier KH21: 60% × 66.5 (est.) + 40% × 64.6 = 66

    No road tests of dry for Ecsta PA51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

    No road tests of dry for Solus Vier KH21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 68

    Wet

    Solus Vier KH21 +3
    71
    Why this score
    SourceEcsta PA51Solus Vier KH21
    Professional tests (TWG score)≈ 68 (est.)≈ 70 (est.)
    Reviews found online6771

    Ecsta PA51: 60% × 68.4 (est.) + 40% × 67.3 = 68

    Solus Vier KH21: 60% × 70.4 (est.) + 40% × 70.9 = 71

    No road tests of wet for Ecsta PA51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

    No road tests of wet for Solus Vier KH21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. 62

    Snow

    No comparison
    –
    Why this score
    SourceEcsta PA51Solus Vier KH21
    Professional tests (TWG score)≈ 66 (est.)–
    Reviews found online57–

    Ecsta PA51: 60% × 65.5 (est.) + 40% × 56.7 = 62

    No road tests of snow for Ecsta PA51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 66

    Comfort

    Ecsta PA51 +4
    62
    Why this score
    SourceEcsta PA51Solus Vier KH21
    Professional tests (TWG score)≈ 68 (est.)≈ 67 (est.)
    Reviews found online6354

    Ecsta PA51: 60% × 68.1 (est.) + 40% × 62.9 = 66

    Solus Vier KH21: 60% × 66.5 (est.) + 40% × 54.1 = 62

    No road tests of comfort for Ecsta PA51 or Solus Vier KH21. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 69

    Noise

    No comparison
    –
    Why this score
    SourceEcsta PA51Solus Vier KH21
    Professional tests (TWG score)≈ 67 (est.)–
    Reviews found online73–

    Ecsta PA51: 60% × 67.3 (est.) + 40% × 72.8 = 69

    No road tests of noise for Ecsta PA51. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 71

    Treadwear

    Ecsta PA51 +16
    55
    Why this score
    SourceEcsta PA51Solus Vier KH21
    Professional tests (TWG score) · 1 / – tests70≈ 60 (est.)
    Reviews found online7247

    Ecsta PA51: 60% × 69.8 + 40% × 71.8 = 71

    Solus Vier KH21: 60% × 59.8 (est.) + 40% × 46.6 = 55

    No road tests of treadwear for Solus Vier KH21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  7. 66

    Handling (owners)

    Ecsta PA51 +1
    65
    Why this score
    SourceEcsta PA51Solus Vier KH21
    Reviews found online6665
Scores at a glance
CategoryKumho Ecsta PA51Kumho Solus Vier KH21
Relative Score 68 65
Dry 68 66
Wet 68 71
Snow 62 –
Comfort 66 62
Noise 69 –
Treadwear 71 55
Handling (owners) 66 65

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

Ecsta PA51

Solus Vier KH21

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 PA51Solus Vier KH21ΔHead-to-head
Also published by the testers (not in the score)
Overall Ranking Overall #7/19 2022 Consumer Reports Ultra High Performance All-Season Tires #9/9 2011 Auto Express Winter Tyre Test – Different tests

Pros, cons & observations

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

Tire A Ecsta PA51

Pros

  • Excellent price-to-performance ratio
  • Strong dry pavement traction and cornering grip
  • Quiet and smooth ride quality

Cons

  • Inconsistent performance in heavy rain or standing water
  • Some reports of increased road noise over time
  • Limited availability in certain niche sizes
All owner themes in the Ecsta PA51 review

Tire B Solus Vier KH21

Pros

  • Cost-effective pricing compared to premium alternatives
  • Certified for winter use with the mountain and snowflake symbol
  • Reliable grip and handling characteristics when tires are new

Cons

  • Rapid and uneven tread wear, particularly on front axles
  • Increased road noise and reduced comfort as the rubber compound hardens over time
  • Susceptibility to balancing issues and structural deformation
All owner themes in the Solus Vier KH21 review

Specs side by side

Attribute A · Kumho Ecsta PA51 B · Kumho Solus Vier KH21
CategoryAll SeasonAll Season
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available13—
Rim diameters16″ – 19″—
Tread depth10.5/32″—
UTQG500 A A—
Treadwear warranty45,000 mi—
SidewallBlackwall—
Max pressure51 psi—

Which one should you actually buy?

Kumho Ecsta PA51

Kumho Solus Vier KH21

Narrow edge: Kumho Ecsta PA51 — better treadwear and comfort. Pick the Kumho Solus Vier KH21 if wet matters most to you. Kumho Solus Vier KH21 rests on little evidence so far (0 tests, 5 reviews), so read this result as provisional.

Pick tire A You want the longest tread life

Kumho Ecsta PA51 scores 71 vs 55 on treadwear.

Pick tire A You want the most comfortable ride

Kumho Ecsta PA51 scores 66 vs 62 on comfort.

Pick tire B Your priority is wet-weather safety

Kumho Solus Vier KH21 scores 71 vs 68 on wet.

Tire A · Kumho Ecsta PA51
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Tire B · Kumho Solus Vier KH21
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Ecsta PA51 or Solus Vier KH21?

Which is better in the wet, Ecsta PA51 or Solus Vier KH21?

Kumho Solus Vier KH21, 71 vs 68 on our wet score.

Which grips better on dry roads, Ecsta PA51 or Solus Vier KH21?

Neither, by our numbers: 68 vs 66 on the dry score, within 3 points.

Which is more comfortable, Ecsta PA51 or Solus Vier KH21?

Kumho Ecsta PA51, 66 vs 62 on our comfort score.

Which lasts longer, Ecsta PA51 or Solus Vier KH21?

Kumho Ecsta PA51, 71 vs 55 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