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Bridgestone Ecopia EP422 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Bridgestone Ecopia EP422 vs Hankook Kinergy 4S — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 3 road tests and 15 + 14 owner reviews. How we score

Kinergy 4S is ahead, 68–57

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Hankook Kinergy 4S
Tire BHankook

Kinergy 4S

All Season

± 8

Tests 68 · 3 tests Owners 68 · 14 reviews

Best test result: #3 of 11 in 2017 All Season VS Winter Tyre Test (dry braking)

Category by category

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

  1. 55

    Dry

    Kinergy 4S +14
    69
    Why this score
    SourceEcopia EP422Kinergy 4S
    Professional tests (TWG score) · – / 3 tests≈ 60 (est.)70
    Reviews found online4867

    Ecopia EP422: 60% × 59.7 (est.) + 40% × 48 = 55

    Kinergy 4S: 60% × 69.7 + 40% × 67.2 = 69

    No road tests of dry for Ecopia EP422. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 58

    Wet

    Kinergy 4S +15
    73
    Why this score
    SourceEcopia EP422Kinergy 4S
    Professional tests (TWG score) · – / 3 tests≈ 61 (est.)74
    Reviews found online5371

    Ecopia EP422: 60% × 61 (est.) + 40% × 53 = 58

    Kinergy 4S: 60% × 74.1 + 40% × 71 = 73

    No road tests of wet for Ecopia EP422. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 55

    Snow

    Kinergy 4S +15
    70
    Why this score
    SourceEcopia EP422Kinergy 4S
    Professional tests (TWG score) · – / 2 tests≈ 62 (est.)66
    Reviews found online4577

    Ecopia EP422: 60% × 62.4 (est.) + 40% × 45 = 55

    Kinergy 4S: 60% × 66.1 + 40% × 76.6 = 70

    No road tests of snow for Ecopia EP422. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 53

    Comfort

    Kinergy 4S +14
    67
    Why this score
    SourceEcopia EP422Kinergy 4S
    Professional tests (TWG score)≈ 64 (est.)≈ 68 (est.)
    Reviews found online4566

    Ecopia EP422: 40% × 64 (est.) + 60% × 45.3 = 53

    Kinergy 4S: 40% × 68.1 (est.) + 60% × 66 = 67

    No road tests of comfort for Ecopia EP422. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

    No road tests of comfort for Kinergy 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. 63

    Noise

    Ecopia EP422 +3
    60
    Why this score
    SourceEcopia EP422Kinergy 4S
    Professional tests (TWG score) · – / 2 tests≈ 66 (est.)56
    Reviews found online57≈ 66 (est.)

    Ecopia EP422: 60% × 66.4 (est.) + 40% × 56.7 = 63

    Kinergy 4S: 60% × 56.3 + 40% × 66.4 (est.) = 60

    No road tests of noise for Ecopia EP422. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

    No owner ratings of noise for Kinergy 4S. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

  6. 60

    Treadwear

    Kinergy 4S +3
    63
    Why this score
    SourceEcopia EP422Kinergy 4S
    Professional tests (TWG score) · – / 1 tests≈ 63 (est.)63
    Reviews found online5663

    Ecopia EP422: 60% × 62.7 (est.) + 40% × 56 = 60

    Kinergy 4S: 60% × 62.8 + 40% × 62.9 = 63

    No road tests of treadwear for Ecopia EP422. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. –

    Handling (owners)

    No comparison
    64
    Why this score
    SourceEcopia EP422Kinergy 4S
    Reviews found online–64
  8. –

    Efficiency

    No comparison
    67
    Why this score
    SourceEcopia EP422Kinergy 4S
    Professional tests (TWG score) · – / 2 tests–67
Scores at a glance
CategoryBridgestone Ecopia EP422Hankook Kinergy 4S
Relative Score 57 68
Dry 55 69
Wet 58 73
Snow 55 70
Comfort 53 67
Noise 63 60
Treadwear 60 63
Handling (owners) – 64
Efficiency – 67

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
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Not important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Recomputed
Headline score
± 8

Ecopia EP422

± 8

Kinergy 4S

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 Ecopia EP422

Not enough owner reviews yet to extract themes.

Tire B Kinergy 4S

Pros

  • Exceptional grip and stability in wet and torrential rain conditions
  • Strong performance in snow and slush, often cited as a viable alternative to dedicated winter tires
  • High value-for-money proposition compared to premium competitors

Cons

  • Reports of premature tread wear and shorter-than-expected service life
  • Inconsistent dry-road handling and feedback compared to dedicated summer tires
  • Occasional reports of poor traction on greasy or specific wet road surfaces
All owner themes in the Kinergy 4S review

Specs side by side

Attribute A · Bridgestone Ecopia EP422 B · Hankook Kinergy 4S
CategoryAll-Season tireAll Season
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available667
Rim diameters15″ – 17″13″ – 18″
Tread depth10/32″—
UTQG480 A A500 - 600 A A
Treadwear warranty65,000 mi—
SidewallBlackwall—
Max pressure51 psi—
Sizes in common55

Which one should you actually buy?

Bridgestone Ecopia EP422

Hankook Kinergy 4S

Winner: Hankook Kinergy 4S — better wet, snow and dry. Pick the Bridgestone Ecopia EP422 if noise matters most to you. Bridgestone Ecopia EP422 rests on little evidence so far (0 tests, 15 reviews), so read this result as provisional.

Pick tire B Your priority is wet-weather safety

Hankook Kinergy 4S scores 73 vs 58 on wet.

Pick tire B You drive through snowy winters

Hankook Kinergy 4S scores 70 vs 55 on snow.

Pick tire B You want the most grip on dry roads

Hankook Kinergy 4S scores 69 vs 55 on dry.

Pick tire B You want the most comfortable ride

Hankook Kinergy 4S scores 67 vs 53 on comfort.

Tire A · Bridgestone Ecopia EP422
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Tire B · Hankook Kinergy 4S
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Ecopia EP422 or Kinergy 4S?

Which is better in the wet, Ecopia EP422 or Kinergy 4S?

Hankook Kinergy 4S, 73 vs 58 on our wet score.

Which grips better on dry roads, Ecopia EP422 or Kinergy 4S?

Hankook Kinergy 4S, 69 vs 55 on our dry score.

Which is better in snow, Ecopia EP422 or Kinergy 4S?

Hankook Kinergy 4S, 70 vs 55 on our snow score.

Which is quieter, Ecopia EP422 or Kinergy 4S?

Bridgestone Ecopia EP422, 63 vs 60 on our noise score.

Which is more comfortable, Ecopia EP422 or Kinergy 4S?

Hankook Kinergy 4S, 67 vs 53 on our comfort score.

Which lasts longer, Ecopia EP422 or Kinergy 4S?

Hankook Kinergy 4S, 63 vs 60 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