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Nitto NT555 vs Pirelli P Zero Nero All Season Run Flat — 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 13 + 37 owner reviews. How we score

P Zero Nero All Season Run Flat is ahead, 60–54

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Nitto NT555
Tire ANitto

NT555

Summer

Provisional

Tests – · none yet Owners 47 · 13 reviews

Category by category

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

  1. 57

    Dry

    P Zero Nero All Season Run Flat +7
    64
    Why this score
    SourceNT555P Zero Nero All Season Run Flat
    Professional tests (TWG score)≈ 61 (est.)≈ 66 (est.)
    Reviews found online5263

    NT555: 60% × 61.2 (est.) + 40% × 51.6 = 57

    P Zero Nero All Season Run Flat: 60% × 65.7 (est.) + 40% × 62.6 = 64

    No road tests of dry for NT555. 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 P Zero Nero All Season Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 54

    Wet

    P Zero Nero All Season Run Flat +10
    64
    Why this score
    SourceNT555P Zero Nero All Season Run Flat
    Professional tests (TWG score)≈ 58 (est.)≈ 65 (est.)
    Reviews found online4962

    NT555: 60% × 58 (est.) + 40% × 48.8 = 54

    P Zero Nero All Season Run Flat: 60% × 65.2 (est.) + 40% × 61.5 = 64

    No road tests of wet for NT555. 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 P Zero Nero All Season Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. 42

    Snow

    P Zero Nero All Season Run Flat +18
    60
    Why this score
    SourceNT555P Zero Nero All Season Run Flat
    Professional tests (TWG score)≈ 55 (est.)≈ 65 (est.)
    Reviews found online2354

    NT555: 60% × 54.5 (est.) + 40% × 23.4 = 42

    P Zero Nero All Season Run Flat: 60% × 64.6 (est.) + 40% × 53.8 = 60

    No road tests of snow for NT555. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

    No road tests of snow for P Zero Nero All Season Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 59

    Comfort

    NT555 +5
    54
    Why this score
    SourceNT555P Zero Nero All Season Run Flat
    Professional tests (TWG score)≈ 66 (est.)≈ 64 (est.)
    Reviews found online4939

    NT555: 60% × 65.6 (est.) + 40% × 49 = 59

    P Zero Nero All Season Run Flat: 60% × 63.8 (est.) + 40% × 38.5 = 54

    No road tests of comfort for NT555 or P Zero Nero All Season Run Flat. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 62

    Noise

    NT555 +5
    57
    Why this score
    SourceNT555P Zero Nero All Season Run Flat
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online5442

    NT555: 60% × 67.3 (est.) + 40% × 53.9 = 62

    P Zero Nero All Season Run Flat: 60% × 67.3 (est.) + 40% × 41.7 = 57

    No road tests of noise for NT555 or P Zero Nero All Season Run Flat. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 55

    Treadwear

    P Zero Nero All Season Run Flat +1
    56
    Why this score
    SourceNT555P Zero Nero All Season Run Flat
    Professional tests (TWG score)≈ 60 (est.)≈ 61 (est.)
    Reviews found online4850

    NT555: 60% × 60.2 (est.) + 40% × 48.1 = 55

    P Zero Nero All Season Run Flat: 60% × 60.8 (est.) + 40% × 49.9 = 56

    No road tests of treadwear for NT555. 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 P Zero Nero All Season Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  7. 54

    Handling (owners)

    NT555 +7
    47
    Why this score
    SourceNT555P Zero Nero All Season Run Flat
    Reviews found online5447
Scores at a glance
CategoryNitto NT555Pirelli P Zero Nero All Season Run Flat
Relative Score 54 60
Dry 57 64
Wet 54 64
Snow 42 60
Comfort 59 54
Noise 62 57
Treadwear 55 56
Handling (owners) 54 47

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
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Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
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Neutral
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Less important
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Recomputed
Headline score

NT555

P Zero Nero All Season Run Flat

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A NT555

Pros

  • Exceptional dry grip and sticky, hot-tar-like road adhesion
  • Enhanced handling and high-speed stability
  • Sporty aesthetic and semi-slick feel favored by enthusiasts

Cons

  • Subpar wet weather traction and dangerous in winter/cold conditions
  • Can struggle to maintain traction on higher-horsepower vehicles (e.g., V8 setups)
  • Notable road noise that increases as the tire wears
All owner themes in the NT555 review

Tire B P Zero Nero All Season Run Flat

Not enough owner reviews yet to extract themes.

Specs side by side

Attribute A · Nitto NT555 B · Pirelli P Zero Nero All Season Run Flat
CategorySummerAll-Season tire
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available53—
Rim diameters15″ – 22″—
Tread depth10.3/32″—
UTQG300 A A—
SidewallBlackwall—
Max pressure50 psi—

Which one should you actually buy?

Nitto NT555

Pirelli P Zero Nero All Season Run Flat

Winner: Pirelli P Zero Nero All Season Run Flat — better snow, wet and dry. Pick the Nitto NT555 if handling, comfort and noise matter most to you. Nitto NT555 rests on little evidence so far (0 tests, 13 reviews), so read this result as provisional.

Pick tire B You drive through snowy winters

Pirelli P Zero Nero All Season Run Flat scores 60 vs 42 on snow.

Pick tire B Your priority is wet-weather safety

Pirelli P Zero Nero All Season Run Flat scores 64 vs 54 on wet.

Pick tire A You enjoy sharp, responsive handling

Nitto NT555 scores 54 vs 47 on handling.

Pick tire B You want the most grip on dry roads

Pirelli P Zero Nero All Season Run Flat scores 64 vs 57 on dry.

Tire A · Nitto NT555
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Tire B · Pirelli P Zero Nero All Season Run Flat
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NT555 or P Zero Nero All Season Run Flat?

Which is better in the wet, NT555 or P Zero Nero All Season Run Flat?

Pirelli P Zero Nero All Season Run Flat, 64 vs 54 on our wet score.

Which grips better on dry roads, NT555 or P Zero Nero All Season Run Flat?

Pirelli P Zero Nero All Season Run Flat, 64 vs 57 on our dry score.

Which is better in snow, NT555 or P Zero Nero All Season Run Flat?

Pirelli P Zero Nero All Season Run Flat, 60 vs 42 on our snow score.

Which is quieter, NT555 or P Zero Nero All Season Run Flat?

Nitto NT555, 62 vs 57 on our noise score.

Which is more comfortable, NT555 or P Zero Nero All Season Run Flat?

Nitto NT555, 59 vs 54 on our comfort score.

Which lasts longer, NT555 or P Zero Nero All Season Run Flat?

Neither, by our numbers: 55 vs 56 on the treadwear score, within 3 points.

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