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Head-to-head Updated May 2026

Bridgestone Ecopia H/L 422 Plus vs Kumho Solus KH21 — Compared (May 2026)

Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.

VS
Tire B Kumho

Kumho Solus KH21

All Season Touring tires

Kumho Solus KH21 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
58/100
3 owner reviews
Dry
63
Wet
57
Snow
–
Comfort
57
Noise
–
Treadwear
70
Handling
37
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Prices change daily — check the retailer for your size.

VerdictWinner: Bridgestone Ecopia H/L 422 Plus — better handling, comfort and dry. Pick the Kumho Solus KH21 if treadwear matters most to you.
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Category breakdown

7 categories, side by side

Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.

Dry

Weight: Neutral
Score (0–100) Ecopia H/L 422 Plus leads by 11
A
74
B
63
Why this score
SourceEcopia H/L 422 PlusSolus KH21
Tire Rack owners 84 –
Tyre Reviews owners – 63
SimpleTire owners 88 –

Wet

Weight: Important
Score (0–100) Ecopia H/L 422 Plus leads by 4
A
61
B
57
Why this score
SourceEcopia H/L 422 PlusSolus KH21
Tire Rack owners 75 –
Tyre Reviews owners – 57
SimpleTire owners 75 –

Snow

Weight: Neutral
Score (0–100)
A
31
B
–
Why this score
SourceEcopia H/L 422 PlusSolus KH21
Tire Rack owners 50 –
SimpleTire owners 60 –

Comfort

Weight: Neutral
Score (0–100) Ecopia H/L 422 Plus leads by 14
A
71
B
57
Why this score
SourceEcopia H/L 422 PlusSolus KH21
Tire Rack owners 76 –
Tyre Reviews owners – 57
SimpleTire owners 77 –

Noise

Weight: Neutral
Score (0–100)
A
69
B
–
Why this score
SourceEcopia H/L 422 PlusSolus KH21
SimpleTire owners 70 –

Treadwear

Weight: Important
Score (0–100) Solus KH21 leads by 21
A
49
B
70
Why this score
SourceEcopia H/L 422 PlusSolus KH21
Tire Rack owners 66 –
Tyre Reviews owners – 70
SimpleTire owners 73 –

Handling

Weight: Neutral
Score (0–100) Ecopia H/L 422 Plus leads by 36
A
73
B
37
Why this score
SourceEcopia H/L 422 PlusSolus KH21
Tyre Reviews owners – 37

Scores at a glance

CategoryBridgestone Ecopia H/L 422 PlusKumho Solus KH21
Relative Score 63 58
Dry 74 63
Wet 61 57
Snow 31 –
Comfort 71 57
Noise 69 –
Treadwear 49 70
Handling 73 37

Higher is better. The Relative Score follows your weights below; category scores do not change.

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Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

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Recomputed
Headline score

Tire A

Tire B

Only categories both tires have data for count toward the headline score.

From owners

Pros, cons & observations

Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.

Tire A Bridgestone Ecopia H/L 422 Plus

Not enough owner reviews yet to extract themes.

Tire B Kumho Solus KH21

The Kumho Solus KH21 receives a mixed reception, with users divided between those who appreciate its value and durability for daily commuting and those who find its performance lacking under spirited driving conditions. While some drivers report satisfactory grip in varied weather, others highlight significant concerns regarding wet-weather traction and audible noise levels as the tire ages.

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
  • Noticeably stiff ride quality during the initial break-in period

Observations

  • Users driving older, economy-focused vehicles like the Renault Scenic reported satisfactory performance for standard commuting needs.
  • Drivers transitioning from premium all-season tires noted a firmer ride quality and increased noise levels.
Specifications

Specs side by side

Attribute A · Bridgestone Ecopia H/L 422 Plus B · Kumho Solus KH21
Category—All Season Touring tires
Vehicle type—Passenger Car / Crossover
Sizes available19—
Rim diameters15″ – 20″—
Tread depth9/32″—
UTQG600 A A—
SidewallBlackwall—
Max pressure51 psi—
Final verdict

Which one should you actually buy?

Bridgestone

Kumho

Winner: Bridgestone Ecopia H/L 422 Plus — better handling, comfort and dry. Pick the Kumho Solus KH21 if treadwear matters most to you.

Pick tire A You enjoy sharp, responsive handling

Bridgestone Ecopia H/L 422 Plus scores 73 vs 37 on handling.

Pick tire B You want the longest tread life

Kumho Solus KH21 scores 70 vs 49 on treadwear.

Pick tire A You want the most comfortable ride

Bridgestone Ecopia H/L 422 Plus scores 71 vs 57 on comfort.

Pick tire A You want the most grip on dry roads

Bridgestone Ecopia H/L 422 Plus scores 74 vs 63 on dry.

Tire A · Bridgestone Ecopia H/L 422 Plus
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Tire B · Kumho Solus KH21
Check price on Amazon

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.

Community buzz from Reddit and forums is shown for context only — it never changes the score.