tirewheelguide

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 Crugen HT51 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 164 + 5 owner reviews. How we score

Crugen HT51 is ahead, 72–65

Check price on Amazon · Crugen HT51 or Solus Vier KH21 on Amazon
Add your size for an exact match
/R

Both Amazon links then search this exact size.

TireWheelGuide may earn a commission from purchases made through these links.

Kumho Crugen HT51
Tire AKumho

Crugen HT51

All Season

Tests – · 1 test Owners 75 · 164 reviews

Category by category

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

  1. 73

    Dry

    Crugen HT51 +7
    66
    Why this score
    SourceCrugen HT51Solus Vier KH21
    Professional tests (TWG score)≈ 71 (est.)≈ 66 (est.)
    Reviews found online7765

    Crugen HT51: 60% × 71.3 (est.) + 40% × 76.5 = 73

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

    No road tests of dry for Crugen HT51. 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. 75

    Wet

    Crugen HT51 +4
    71
    Why this score
    SourceCrugen HT51Solus Vier KH21
    Professional tests (TWG score)≈ 74 (est.)≈ 70 (est.)
    Reviews found online7771

    Crugen HT51: 60% × 73.8 (est.) + 40% × 76.9 = 75

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

    No road tests of wet for Crugen HT51. 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. 70

    Snow

    No comparison
    –
    Why this score
    SourceCrugen HT51Solus Vier KH21
    Professional tests (TWG score)≈ 70 (est.)–
    Reviews found online70–

    Crugen HT51: 60% × 69.8 (est.) + 40% × 69.6 = 70

    No road tests of snow for Crugen HT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 71

    Comfort

    Crugen HT51 +9
    62
    Why this score
    SourceCrugen HT51Solus Vier KH21
    Professional tests (TWG score)≈ 70 (est.)≈ 67 (est.)
    Reviews found online7254

    Crugen HT51: 60% × 69.7 (est.) + 40% × 72.2 = 71

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

    No road tests of comfort for Crugen HT51 or Solus Vier KH21. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 72

    Noise

    No comparison
    –
    Why this score
    SourceCrugen HT51Solus Vier KH21
    Professional tests (TWG score)≈ 67 (est.)–
    Reviews found online78–

    Crugen HT51: 60% × 67.3 (est.) + 40% × 78.3 = 72

    No road tests of noise for Crugen HT51. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 64

    Treadwear

    Crugen HT51 +9
    55
    Why this score
    SourceCrugen HT51Solus Vier KH21
    Professional tests (TWG score) · 1 / – tests58≈ 60 (est.)
    Reviews found online7447

    Crugen HT51: 60% × 57.7 + 40% × 74.1 = 64

    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. 75

    Handling (owners)

    Crugen HT51 +10
    65
    Why this score
    SourceCrugen HT51Solus Vier KH21
    Reviews found online7565
Scores at a glance
CategoryKumho Crugen HT51Kumho Solus Vier KH21
Relative Score 72 65
Dry 73 66
Wet 75 71
Snow 70 –
Comfort 71 62
Noise 72 –
Treadwear 64 55
Handling (owners) 75 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

Crugen HT51

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.

DisciplineCategoryCrugen HT51Solus Vier KH21ΔHead-to-head
Also published by the testers (not in the score)
Overall Ranking Overall #5/13 2022 Consumer Reports All Season Truck 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 Crugen HT51

Pros

  • Exceptional value and lower price point compared to premium competitors
  • Smooth, quiet, and comfortable highway ride
  • Strong dry, wet, and winter/snow traction

Cons

  • Slightly vague or 'squishy' steering feel/sidewall stiffness compared to some OEM tires
  • Potential negative impact on fuel economy (decreased MPG for some truck owners)
  • Occasional reports of accelerated shoulder wear or balancing issues
All owner themes in the Crugen HT51 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 Crugen HT51 B · Kumho Solus Vier KH21
CategoryAll SeasonAll Season
Vehicle typeSUV and 4x4Passenger Car / Crossover
Sizes available44—
Rim diameters15″ – 22″—
Tread depth12.5/32″—
UTQG720 A A—
Treadwear warranty70,000 mi—
SidewallBlackwall—
Max pressure50 psi—

Which one should you actually buy?

Kumho Crugen HT51

Kumho Solus Vier KH21

Winner: Kumho Crugen HT51 — better handling, comfort and treadwear. It leads or ties in every category we score. Kumho Solus Vier KH21 rests on little evidence so far (0 tests, 5 reviews), so read this result as provisional.

Pick tire A You enjoy sharp, responsive handling

Kumho Crugen HT51 scores 75 vs 65 on handling.

Pick tire A You want the most comfortable ride

Kumho Crugen HT51 scores 71 vs 62 on comfort.

Pick tire A You want the longest tread life

Kumho Crugen HT51 scores 64 vs 55 on treadwear.

Pick tire A You want the most grip on dry roads

Kumho Crugen HT51 scores 73 vs 66 on dry.

Tire A · Kumho Crugen HT51
Check price on Amazon
Tire B · Kumho Solus Vier KH21
Check price on Amazon

TireWheelGuide may earn a commission from purchases made through these links.

Crugen HT51 or Solus Vier KH21?

Which is better in the wet, Crugen HT51 or Solus Vier KH21?

Kumho Crugen HT51, 75 vs 71 on our wet score.

Which grips better on dry roads, Crugen HT51 or Solus Vier KH21?

Kumho Crugen HT51, 73 vs 66 on our dry score.

Which is more comfortable, Crugen HT51 or Solus Vier KH21?

Kumho Crugen HT51, 71 vs 62 on our comfort score.

Which lasts longer, Crugen HT51 or Solus Vier KH21?

Kumho Crugen HT51, 64 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