Kumho Solus Vier KH21 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 9,892 + 5 owner reviews. How we score
Too close to call: Ecowing ES31 64, Solus Vier KH21 65.
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Tests – · none yet Owners 63 · 9,892 reviews
“Certa vez, nos comentários de um vídeo sobre pneus no YouTube, vi a galera que trabalha com Uber falando bem do Ecowing ES31, relatando que tem ótima durabilidade. Resolvi arriscar e coloquei, são ótimos mesmo, já rodei 18 mil km e estão impecáveis ainda.”
Tests – · none yet Owners 60 · 5 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Ecowing ES31 | Solus Vier KH21 |
|---|---|---|
| Professional tests (TWG score) | ≈ 66 (est.) | ≈ 66 (est.) |
| Reviews found online | 63 | 65 |
Ecowing ES31: 60% × 65.9 (est.) + 40% × 63.1 = 65
Solus Vier KH21: 60% × 66.5 (est.) + 40% × 64.6 = 66
No road tests of dry for Ecowing ES31. 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).
| Source | Ecowing ES31 | Solus Vier KH21 |
|---|---|---|
| Professional tests (TWG score) | ≈ 66 (est.) | ≈ 70 (est.) |
| Reviews found online | 64 | 71 |
Ecowing ES31: 60% × 66.3 (est.) + 40% × 63.5 = 65
Solus Vier KH21: 60% × 70.4 (est.) + 40% × 70.9 = 71
No road tests of wet for Ecowing ES31. 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).
| Source | Ecowing ES31 | Solus Vier KH21 |
|---|---|---|
| Professional tests (TWG score) | ≈ 68 (est.) | ≈ 67 (est.) |
| Reviews found online | 65 | 54 |
Ecowing ES31: 60% × 68.4 (est.) + 40% × 64.7 = 67
Solus Vier KH21: 60% × 66.5 (est.) + 40% × 54.1 = 62
No road tests of comfort for Ecowing ES31 or Solus Vier KH21. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Ecowing ES31 | Solus Vier KH21 |
|---|---|---|
| Professional tests (TWG score) | ≈ 64 (est.) | ≈ 60 (est.) |
| Reviews found online | 62 | 47 |
Ecowing ES31: 60% × 64.4 (est.) + 40% × 61.6 = 63
Solus Vier KH21: 60% × 59.8 (est.) + 40% × 46.6 = 55
No road tests of treadwear for Ecowing ES31. 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 Vier KH21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
| Source | Ecowing ES31 | Solus Vier KH21 |
|---|---|---|
| Reviews found online | 59 | 65 |
| Category | Kumho Ecowing ES31 | Kumho Solus Vier KH21 |
|---|---|---|
| Relative Score | 64 | 65 |
| Dry | 65 | 66 |
| Wet | 65 | 71 |
| Comfort | 67 | 62 |
| Treadwear | 63 | 55 |
| Handling (owners) | 59 | 65 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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.
Ecowing ES31
Solus Vier KH21
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.
| Discipline | Category | Ecowing ES31 | Solus Vier KH21 | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #9/18 2022 ADAC 16" SUV Summer Tyre Test | #9/9 2011 Auto Express Winter Tyre Test | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
The Kumho Ecowing ES31 is generally viewed as an affordable, budget-friendly mid-range summer tire that offers good durability and dry grip, making it popular among commuters and rideshare drivers. However, opinions are mixed regarding its wet weather performance, with some users reporting poor wet grip while others find it acceptable for cautious, everyday driving.
“Certa vez, nos comentários de um vídeo sobre pneus no YouTube, vi a galera que trabalha com Uber falando bem do Ecowing ES31, relatando que tem ótima durabilidade. Resolvi arriscar e coloquei, são ótimos mesmo, já rodei 18 mil km e estão impecáveis ainda.”
“Tengo las kumho ecowing es31 y ninguna queja, siempre respondieron bien aunque la verdad manejo como un abuelo, solo una vez frene fuerte en la panamericana y nunca bloquearon, las volveria a poner en otro auto.”
“The es31s are utter garbage in the wet. Good in the dry, and last a long time, but awful in the wet. Don't cheap out on tyres. I'd personally avoid most 'eco' tyres, they sacrifice a lot in grip and safety. The ecopia ep150 was class leading when it launched... in 2009. It's an ancient tyre that doesn't hold up anymore. Even worse than the es31s in basically everyway. If you have to get one of those two, DON'T get the ep150s.”
Based on 12 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Kumho Ecowing ES31 | B · Kumho Solus Vier KH21 |
|---|---|---|
| Category | Summer | All Season |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 39 | — |
| Rim diameters | 13″ – 18″ | — |
Kumho Ecowing ES31
Kumho Solus Vier KH21
Too close to call: Kumho Ecowing ES31 and Kumho Solus Vier KH21 are within 2 points overall. Kumho Ecowing ES31 is stronger on treadwear and comfort. Kumho Solus Vier KH21 is stronger on wet and handling. Kumho Solus Vier KH21 rests on little evidence so far (0 tests, 5 reviews), so read this result as provisional.
Kumho Ecowing ES31 scores 63 vs 55 on treadwear.
Kumho Solus Vier KH21 scores 71 vs 65 on wet.
Kumho Solus Vier KH21 scores 65 vs 59 on handling.
Kumho Ecowing ES31 scores 67 vs 62 on comfort.
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Kumho Solus Vier KH21, 71 vs 65 on our wet score.
Neither, by our numbers: 65 vs 66 on the dry score, within 3 points.
Kumho Ecowing ES31, 67 vs 62 on our comfort score.
Kumho Ecowing ES31, 63 vs 55 on our treadwear score.
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
