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Head-to-head Updated

Continental SportContact 2 SSR Run Flat vs Nitto NT555 G2 — 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 + 2 road tests and 7 + 412 owner reviews. How we score

SportContact 2 SSR Run Flat is ahead, 69–59

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Nitto NT555 G2
Tire BNitto

NT555 G2

Summer

± 7

Tests 60 · 2 tests Owners 58 · 412 reviews

Best test result: #1 of 22 in 2022 Consumer Reports Ultra High Performance Summer Tires (tested tread life (miles))

Category by category

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

  1. 70

    Dry

    SportContact 2 SSR Run Flat +15
    55
    Why this score
    SourceSportContact 2 SSR Run FlatNT555 G2
    Professional tests (TWG score) · – / 1 tests≈ 69 (est.)49
    Reviews found online7164

    SportContact 2 SSR Run Flat: 60% × 69 (est.) + 40% × 70.5 = 70

    NT555 G2: 60% × 49 + 40% × 63.8 = 55

    No road tests of dry for SportContact 2 SSR Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 73

    Wet

    SportContact 2 SSR Run Flat +23
    50
    Why this score
    SourceSportContact 2 SSR Run FlatNT555 G2
    Professional tests (TWG score) · – / 1 tests≈ 72 (est.)48
    Reviews found online7454

    SportContact 2 SSR Run Flat: 60% × 72.3 (est.) + 40% × 73.6 = 73

    NT555 G2: 60% × 48.3 + 40% × 53.8 = 50

    No road tests of wet for SportContact 2 SSR Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. –

    Snow

    No comparison
    48
    Why this score
    SourceSportContact 2 SSR Run FlatNT555 G2
    Professional tests (TWG score)–≈ 58 (est.)
    Reviews found online–33

    NT555 G2: 60% × 58.5 (est.) + 40% × 32.7 = 48

    No road tests of snow for NT555 G2. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 63

    Comfort

    NT555 G2 +3
    66
    Why this score
    SourceSportContact 2 SSR Run FlatNT555 G2
    Professional tests (TWG score)≈ 67 (est.)≈ 68 (est.)
    Reviews found online6165

    SportContact 2 SSR Run Flat: 40% × 67 (est.) + 60% × 60.5 = 63

    NT555 G2: 40% × 67.9 (est.) + 60% × 64.9 = 66

    No road tests of comfort for SportContact 2 SSR Run Flat. 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 NT555 G2. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. –

    Noise

    No comparison
    65
    Why this score
    SourceSportContact 2 SSR Run FlatNT555 G2
    Professional tests (TWG score)–≈ 66 (est.)
    Reviews found online–64

    NT555 G2: 60% × 66.3 (est.) + 40% × 64 = 65

    No road tests of noise for NT555 G2. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 63

    Treadwear

    NT555 G2 +13
    76
    Why this score
    SourceSportContact 2 SSR Run FlatNT555 G2
    Professional tests (TWG score) · – / 1 tests≈ 65 (est.)83
    Reviews found online6166

    SportContact 2 SSR Run Flat: 60% × 64.6 (est.) + 40% × 61 = 63

    NT555 G2: 60% × 83.3 + 40% × 66 = 76

    No road tests of treadwear for SportContact 2 SSR Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 71

    Handling (owners)

    SportContact 2 SSR Run Flat +9
    62
    Why this score
    SourceSportContact 2 SSR Run FlatNT555 G2
    Reviews found online7162
Scores at a glance
CategoryContinental SportContact 2 SSR Run FlatNitto NT555 G2
Relative Score 69 59
Dry 70 55
Wet 73 50
Snow – 48
Comfort 63 66
Noise – 65
Treadwear 63 76
Handling (owners) 71 62

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
± 8

SportContact 2 SSR Run Flat

± 7

NT555 G2

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 SportContact 2 SSR Run Flat

Pros

  • Strong wet and dry traction performance
  • Improved ride comfort compared to competing run-flat brands
  • Respectable tread longevity for some users

Cons

  • Tendency for uneven tread wear
  • Increased road noise as the tire ages
  • Harsh ride quality on low-profile, staggered setups
All owner themes in the SportContact 2 SSR Run Flat review

Tire B NT555 G2

Pros

  • Aggressive, visually appealing tread pattern and sidewall design
  • Exceptional value and lower price point compared to premium brands like Michelin or Pirelli
  • Long-lasting tread life and slow wear rates for a summer performance tire

Cons

  • Poor wet-weather traction, with multiple users reporting hydroplaning and a slippery feel in the rain
  • Lack of straight-line traction and wheel spin under heavy acceleration, especially on high-horsepower RWD vehicles
  • Subpar performance in cooler temperatures or cold conditions, requiring heat to grip properly
All owner themes in the NT555 G2 review

Specs side by side

Attribute A · Continental SportContact 2 SSR Run Flat B · Nitto NT555 G2
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available—88
Rim diameters—15″ – 22″
Tread depth—10.2/32″
UTQG—320 A A
Sidewall—Blackwall
Max pressure—50 psi

Which one should you actually buy?

Continental SportContact 2 SSR Run Flat

Nitto NT555 G2

Winner: Continental SportContact 2 SSR Run Flat — better wet, dry and handling. Pick the Nitto NT555 G2 if treadwear and comfort matter most to you. Continental SportContact 2 SSR Run Flat rests on little evidence so far (0 tests, 7 reviews), so read this result as provisional.

Pick tire A Your priority is wet-weather safety

Continental SportContact 2 SSR Run Flat scores 73 vs 50 on wet.

Pick tire A You want the most grip on dry roads

Continental SportContact 2 SSR Run Flat scores 70 vs 55 on dry.

Pick tire B You want the longest tread life

Nitto NT555 G2 scores 76 vs 63 on treadwear.

Pick tire A You enjoy sharp, responsive handling

Continental SportContact 2 SSR Run Flat scores 71 vs 62 on handling.

Tire A · Continental SportContact 2 SSR Run Flat
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Tire B · Nitto NT555 G2
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SportContact 2 SSR Run Flat or NT555 G2?

Which is better in the wet, SportContact 2 SSR Run Flat or NT555 G2?

Continental SportContact 2 SSR Run Flat, 73 vs 50 on our wet score.

Which grips better on dry roads, SportContact 2 SSR Run Flat or NT555 G2?

Continental SportContact 2 SSR Run Flat, 70 vs 55 on our dry score.

Which is more comfortable, SportContact 2 SSR Run Flat or NT555 G2?

Nitto NT555 G2, 66 vs 63 on our comfort score.

Which lasts longer, SportContact 2 SSR Run Flat or NT555 G2?

Nitto NT555 G2, 76 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