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Head-to-head Updated

Falken ZIEX CT50 vs Michelin Primacy 4+ — 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 + 10 road tests and 3 + 39 owner reviews. How we score

Check price on Amazon · ZIEX CT50 Check price on Amazon · Primacy 4+
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Falken ZIEX CT50
Tire AFalken

ZIEX CT50

Summer Premium Touring tires

Tests – · none yet Owners – · 3 reviews (needs 5)

Michelin Primacy 4+
Tire BMichelin

Primacy 4+

Summer

± 4

Tests 85 · 10 tests Owners 70 · 39 reviews

Best test result: #1 of 16 in 2024 ADAC Summer Tyre Test (abrasion)

Category by category

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

  1. –

    Dry

    No comparison
    78
    Why this score
    SourceZIEX CT50Primacy 4+
    Professional tests (TWG score) · – / 9 tests–82
    Reviews found online–71

    Primacy 4+: 60% × 82.3 + 40% × 70.6 = 78

  2. –

    Wet

    No comparison
    79
    Why this score
    SourceZIEX CT50Primacy 4+
    Professional tests (TWG score) · – / 9 tests–83
    Reviews found online–74

    Primacy 4+: 60% × 82.6 + 40% × 73.8 = 79

  3. –

    Comfort

    No comparison
    71
    Why this score
    SourceZIEX CT50Primacy 4+
    Professional tests (TWG score) · – / 1 tests–73
    Reviews found online–69

    Primacy 4+: 40% × 73.3 + 60% × 69 = 71

  4. –

    Noise

    No comparison
    73
    Why this score
    SourceZIEX CT50Primacy 4+
    Professional tests (TWG score) · – / 7 tests–77
    Reviews found online–≈ 67 (est.)

    Primacy 4+: 60% × 76.7 + 40% × 66.6 (est.) = 73

    No owner ratings of noise for Primacy 4+. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

  5. –

    Treadwear

    No comparison
    85
    Why this score
    SourceZIEX CT50Primacy 4+
    Professional tests (TWG score) · – / 4 tests–95
    Reviews found online–69

    Primacy 4+: 60% × 95.3 + 40% × 68.9 = 85

  6. –

    Handling (owners)

    No comparison
    65
    Why this score
    SourceZIEX CT50Primacy 4+
    Reviews found online–65
  7. –

    Efficiency

    No comparison
    78
    Why this score
    SourceZIEX CT50Primacy 4+
    Professional tests (TWG score) · – / 8 tests–78
Scores at a glance
CategoryFalken ZIEX CT50Michelin Primacy 4+
Relative Score – 77
Dry – 78
Wet – 79
Comfort – 71
Noise – 73
Treadwear – 85
Handling (owners) – 65
Efficiency – 78

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
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost
Recomputed
Headline score

ZIEX CT50

± 4

Primacy 4+

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 ZIEX CT50

Not enough owner reviews yet to extract themes.

Tire B Primacy 4+

Pros

  • Excellent ride comfort and a smooth, compliant 'limousine-like' feel over bumps
  • Strong and reliable grip in both wet and dry conditions, inspiring confidence
  • Noticeable improvement in quietness and traction compared to predecessor tires or factory options

Cons

  • Loud road noise and a harsh drone on rough or coarse asphalt surfaces
  • Soft sidewalls can reduce steering agility and initial responsiveness compared to dedicated sport tires
  • High premium price point relative to competitors
All owner themes in the Primacy 4+ review

Specs side by side

Attribute A · Falken ZIEX CT50 B · Michelin Primacy 4+
CategorySummer Premium Touring tiresSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available—66
Rim diameters—16″ – 21″

Which one should you actually buy?

Falken ZIEX CT50

Michelin Primacy 4+

Only Michelin Primacy 4+ has enough test and review data for a Relative Score, so there is no head-to-head winner yet.

Tire A · Falken ZIEX CT50
Check price on Amazon
Tire B · Michelin Primacy 4+
Check price on Amazon

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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