Tests – · none yet Owners 48 · 3 reviews
Kumho Solus KH21 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Head-to-head
Updated
Kumho Solus KH21 vs Nexen Roadian HTX RH5 — Compared
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 3 + 35 owner reviews. How we score
Roadian HTX RH5 is ahead, 64–53
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Tests – · none yet Owners 62 · 35 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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51
Dry
Roadian HTX RH5 +1162Why this score
Source Solus KH21 Roadian HTX RH5 Professional tests (TWG score) ≈ 58 (est.) ≈ 64 (est.) Reviews found online 42 59 Solus KH21: 60% × 57.5 (est.) + 40% × 42.4 = 51
Roadian HTX RH5: 60% × 64.4 (est.) + 40% × 59.4 = 62
No road tests of dry for Solus KH21. 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 Roadian HTX RH5. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
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55
Wet
Roadian HTX RH5 +1166Why this score
Source Solus KH21 Roadian HTX RH5 Professional tests (TWG score) ≈ 59 (est.) ≈ 67 (est.) Reviews found online 50 64 Solus KH21: 60% × 58.7 (est.) + 40% × 50 = 55
Roadian HTX RH5: 60% × 66.6 (est.) + 40% × 64.1 = 66
No road tests of wet for Solus KH21. 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 Roadian HTX RH5. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
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–
Snow
No comparison63Why this score
Source Solus KH21 Roadian HTX RH5 Professional tests (TWG score) – ≈ 66 (est.) Reviews found online – 59 Roadian HTX RH5: 60% × 66.2 (est.) + 40% × 58.7 = 63
No road tests of snow for Roadian HTX RH5. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
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57
Comfort
Roadian HTX RH5 +562Why this score
Source Solus KH21 Roadian HTX RH5 Professional tests (TWG score) ≈ 65 (est.) ≈ 67 (est.) Reviews found online 45 55 Solus KH21: 60% × 64.9 (est.) + 40% × 44.6 = 57
Roadian HTX RH5: 60% × 66.7 (est.) + 40% × 54.9 = 62
No road tests of comfort for Solus KH21 or Roadian HTX RH5. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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–
Noise
No comparison68Why this score
Source Solus KH21 Roadian HTX RH5 Professional tests (TWG score) – ≈ 67 (est.) Reviews found online – 70 Roadian HTX RH5: 60% × 67.3 (est.) + 40% × 69.8 = 68
No road tests of noise for Roadian HTX RH5. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
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59
Treadwear
Roadian HTX RH5 +665Why this score
Source Solus KH21 Roadian HTX RH5 Professional tests (TWG score) ≈ 62 (est.) ≈ 66 (est.) Reviews found online 54 65 Solus KH21: 60% × 62 (est.) + 40% × 54 = 59
Roadian HTX RH5: 60% × 65.6 (est.) + 40% × 65.4 = 65
No road tests of treadwear for Solus KH21. 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 Roadian HTX RH5. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
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42
Handling (owners)
Roadian HTX RH5 +1759Why this score
Source Solus KH21 Roadian HTX RH5 Reviews found online 42 59
Scores at a glance
| Category | Kumho Solus KH21 | Nexen Roadian HTX RH5 |
|---|---|---|
| Relative Score | 53 | 64 |
| Dry | 51 | 62 |
| Wet | 55 | 66 |
| Snow | – | 63 |
| Comfort | 57 | 62 |
| Noise | – | 68 |
| Treadwear | 59 | 65 |
| Handling (owners) | 42 | 59 |
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
53
/ 100
Solus KH21
64
/ 100
Roadian HTX RH5
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Solus KH21
Pros
- Competitive price point compared to premium alternatives
- Acceptable dry and wet grip for standard, non-aggressive driving
- Decent tread longevity for daily use
Cons
- Significant loss of wet-weather performance after initial wear
- High levels of road noise and audible squealing during cornering
- Inconsistent grip levels on varying asphalt surfaces
Tire B Roadian HTX RH5
Not enough owner reviews yet to extract themes.
Specs side by side
| Attribute | A · Kumho Solus KH21 | B · Nexen Roadian HTX RH5 |
|---|---|---|
| Category | All Season Touring tires | All-Season tire |
| Vehicle type | Passenger Car / Crossover | SUV and 4x4 |
| Sizes available | — | 44 |
| Rim diameters | — | 15″ – 22″ |
| Tread depth | — | 11/32″ |
| UTQG | — | 640 A A |
| Treadwear warranty | — | 65,000 mi |
| Sidewall | — | Blackwall |
| Max pressure | — | 51 psi |
Which one should you actually buy?
53
/ 100
Kumho Solus KH21
64
/ 100
Nexen Roadian HTX RH5
Winner: Nexen Roadian HTX RH5 — better handling, dry and wet. It leads or ties in every category we score. Kumho Solus KH21 rests on little evidence so far (0 tests, 3 reviews), so read this result as provisional.
Pick tire B
You enjoy sharp, responsive handling
Nexen Roadian HTX RH5 scores 59 vs 42 on handling.
Pick tire B
You want the most grip on dry roads
Nexen Roadian HTX RH5 scores 62 vs 51 on dry.
Pick tire B
Your priority is wet-weather safety
Nexen Roadian HTX RH5 scores 66 vs 55 on wet.
Pick tire B
You want the longest tread life
Nexen Roadian HTX RH5 scores 65 vs 59 on treadwear.
Tire A · Kumho Solus KH21
Tire B · Nexen Roadian HTX RH5
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Solus KH21 or Roadian HTX RH5?
Which is better in the wet, Solus KH21 or Roadian HTX RH5?
Nexen Roadian HTX RH5, 66 vs 55 on our wet score.
Which grips better on dry roads, Solus KH21 or Roadian HTX RH5?
Nexen Roadian HTX RH5, 62 vs 51 on our dry score.
Which is more comfortable, Solus KH21 or Roadian HTX RH5?
Nexen Roadian HTX RH5, 62 vs 57 on our comfort score.
Which lasts longer, Solus KH21 or Roadian HTX RH5?
Nexen Roadian HTX RH5, 65 vs 59 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