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Falken FK451 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Falken FK451 vs Michelin Primacy MXM4 — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 1 road tests and 10 + 10 owner reviews. How we score

FK451 leads, 68–64 Narrow edge

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Falken FK451
Tire AFalken

FK451

Summer

Provisional

Tests – · none yet Owners 67 · 10 reviews

Category by category

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

  1. 66

    Dry

    Primacy MXM4 +9
    75
    Why this score
    SourceFK451Primacy MXM4
    Professional tests (TWG score) · – / 1 tests≈ 67 (est.)87
    Reviews found online6557

    FK451: 60% × 66.6 (est.) + 40% × 64.9 = 66

    Primacy MXM4: 60% × 86.7 + 40% × 56.7 = 75

    No road tests of dry for FK451. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 70

    Wet

    FK451 +12
    58
    Why this score
    SourceFK451Primacy MXM4
    Professional tests (TWG score) · – / 1 tests≈ 70 (est.)56
    Reviews found online7061

    FK451: 60% × 70 (est.) + 40% × 70.2 = 70

    Primacy MXM4: 60% × 56.1 + 40% × 61.1 = 58

    No road tests of wet for FK451. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. –

    Snow

    No comparison
    56
    Why this score
    SourceFK451Primacy MXM4
    Professional tests (TWG score)–≈ 62 (est.)
    Reviews found online–47

    Primacy MXM4: 60% × 62.3 (est.) + 40% × 47 = 56

    No road tests of snow for Primacy MXM4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 68

    Comfort

    FK451 +8
    60
    Why this score
    SourceFK451Primacy MXM4
    Professional tests (TWG score) · – / 1 tests≈ 69 (est.)64
    Reviews found online6753

    FK451: 60% × 68.8 (est.) + 40% × 67.4 = 68

    Primacy MXM4: 60% × 63.9 + 40% × 53.1 = 60

    No road tests of comfort for FK451. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. –

    Noise

    No comparison
    73
    Why this score
    SourceFK451Primacy MXM4
    Professional tests (TWG score) · – / 1 tests–82
    Reviews found online–60

    Primacy MXM4: 60% × 81.5 + 40% × 59.6 = 73

  6. 67

    Treadwear

    FK451 +4
    63
    Why this score
    SourceFK451Primacy MXM4
    Professional tests (TWG score)≈ 66 (est.)≈ 64 (est.)
    Reviews found online6861

    FK451: 60% × 66.2 (est.) + 40% × 67.5 = 67

    Primacy MXM4: 60% × 64.3 (est.) + 40% × 61.3 = 63

    No road tests of treadwear for FK451. 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 Primacy MXM4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  7. 65

    Handling (owners)

    FK451 +11
    54
    Why this score
    SourceFK451Primacy MXM4
    Reviews found online6554
Scores at a glance
CategoryFalken FK451Michelin Primacy MXM4
Relative Score 68 64
Dry 66 75
Wet 70 58
Snow – 56
Comfort 68 60
Noise – 73
Treadwear 67 63
Handling (owners) 65 54

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

FK451

Primacy MXM4

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 FK451

Pros

  • Exceptional price-to-performance ratio
  • Strong wet and dry traction
  • Excellent tread life and durability

Cons

  • Potential for rubber cracking between treads over long-term storage or extended age
  • Some users report a slightly less 'alive' or communicative steering feel compared to premium performance tires
  • Availability concerns as it is an older model often superseded by newer iterations
All owner themes in the FK451 review

Tire B Primacy MXM4

Pros

  • Exceptional ride comfort and vibration dampening
  • Strong tread life and durability
  • High fuel efficiency

Cons

  • Mediocre dry grip and handling precision
  • Noticeable understeer when cornering
  • Soft sidewalls that lack steering feedback
All owner themes in the Primacy MXM4 review

Specs side by side

Attribute A · Falken FK451 B · Michelin Primacy MXM4
CategorySummerAll Season
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover

Which one should you actually buy?

Falken FK451

Michelin Primacy MXM4

Narrow edge: Falken FK451 — better wet, handling and comfort. Pick the Michelin Primacy MXM4 if dry matters most to you. Falken FK451 rests on little evidence so far (0 tests, 10 reviews), so read this result as provisional. Michelin Primacy MXM4 rests on little evidence so far (1 test, 10 reviews), so read this result as provisional.

Pick tire A Your priority is wet-weather safety

Falken FK451 scores 70 vs 58 on wet.

Pick tire A You enjoy sharp, responsive handling

Falken FK451 scores 65 vs 54 on handling.

Pick tire B You want the most grip on dry roads

Michelin Primacy MXM4 scores 75 vs 66 on dry.

Pick tire A You want the most comfortable ride

Falken FK451 scores 68 vs 60 on comfort.

Tire A · Falken FK451
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Tire B · Michelin Primacy MXM4
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FK451 or Primacy MXM4?

Which is better in the wet, FK451 or Primacy MXM4?

Falken FK451, 70 vs 58 on our wet score.

Which grips better on dry roads, FK451 or Primacy MXM4?

Michelin Primacy MXM4, 75 vs 66 on our dry score.

Which is more comfortable, FK451 or Primacy MXM4?

Falken FK451, 68 vs 60 on our comfort score.

Which lasts longer, FK451 or Primacy MXM4?

Falken FK451, 67 vs 63 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