Tests – · none yet Owners 62 · 259 reviews
Kumho Ecsta PS31 vs Nitto NT555 — 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 + 0 road tests and 259 + 13 owner reviews. How we score
Ecsta PS31 is ahead, 65–51
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Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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63
Dry
Ecsta PS31 +954Why this score
Source Ecsta PS31 NT555 Professional tests (TWG score) ≈ 65 (est.) ≈ 59 (est.) Reviews found online 60 47 Ecsta PS31: 60% × 64.5 (est.) + 40% × 59.7 = 63
NT555: 60% × 59.3 (est.) + 40% × 47.1 = 54
No road tests of dry for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
No road tests of dry for NT555. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
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68
Wet
Ecsta PS31 +1751Why this score
Source Ecsta PS31 NT555 Professional tests (TWG score) ≈ 69 (est.) ≈ 56 (est.) Reviews found online 68 44 Ecsta PS31: 60% × 69 (est.) + 40% × 67.6 = 68
NT555: 60% × 56.2 (est.) + 40% × 44.3 = 51
No road tests of wet for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
No road tests of wet for NT555. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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58
Snow
Ecsta PS31 +1642Why this score
Source Ecsta PS31 NT555 Professional tests (TWG score) ≈ 64 (est.) ≈ 55 (est.) Reviews found online 49 23 Ecsta PS31: 60% × 63.7 (est.) + 40% × 49.1 = 58
NT555: 60% × 55.3 (est.) + 40% × 22.6 = 42
No road tests of snow for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
No road tests of snow for NT555. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
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65
Comfort
Ecsta PS31 +1451Why this score
Source Ecsta PS31 NT555 Professional tests (TWG score) ≈ 68 (est.) ≈ 64 (est.) Reviews found online 64 43 Ecsta PS31: 40% × 67.7 (est.) + 60% × 63.8 = 65
NT555: 40% × 63.5 (est.) + 60% × 43.2 = 51
No road tests of comfort for Ecsta PS31. 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. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
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66
Noise
Ecsta PS31 +759Why this score
Source Ecsta PS31 NT555 Professional tests (TWG score) ≈ 66 (est.) ≈ 66 (est.) Reviews found online 66 49 Ecsta PS31: 60% × 66.3 (est.) + 40% × 66 = 66
NT555: 60% × 66.3 (est.) + 40% × 48.8 = 59
No road tests of noise for Ecsta PS31 or NT555. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
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65
Treadwear
Ecsta PS31 +1352Why this score
Source Ecsta PS31 NT555 Professional tests (TWG score) ≈ 66 (est.) ≈ 58 (est.) Reviews found online 65 44 Ecsta PS31: 60% × 65.9 (est.) + 40% × 64.8 = 65
NT555: 60% × 58.3 (est.) + 40% × 43.6 = 52
No road tests of treadwear for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
No road tests of treadwear for NT555. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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68
Handling (owners)
Ecsta PS31 +1949Why this score
Source Ecsta PS31 NT555 Reviews found online 68 49
Scores at a glance
| Category | Kumho Ecsta PS31 | Nitto NT555 |
|---|---|---|
| Relative Score | 65 | 51 |
| Dry | 63 | 54 |
| Wet | 68 | 51 |
| Snow | 58 | 42 |
| Comfort | 65 | 51 |
| Noise | 66 | 59 |
| Treadwear | 65 | 52 |
| Handling (owners) | 68 | 49 |
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.
Ecsta PS31
NT555
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Ecsta PS31
Pros
- Excellent price-to-performance ratio
- High levels of ride comfort and low road noise
- Strong dry traction for daily and spirited street driving
Cons
- Soft sidewalls lead to vague steering response and 'squirm' during aggressive maneuvers
- Inconsistent wet weather performance reported by some users, particularly in deep standing water
- Tread life can be shorter than expected for some driving styles
Tire B 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
Specs side by side
| Attribute | A · Kumho Ecsta PS31 | B · Nitto NT555 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 21 | 53 |
| Rim diameters | 15″ – 18″ | 15″ – 22″ |
| Tread depth | 10/32″ | 10.3/32″ |
| UTQG | 460 A A | 300 A A |
| Sidewall | Blackwall | Blackwall |
| Max pressure | 51 psi | 50 psi |
| Sizes in common | 11 | 11 |
Which one should you actually buy?
Kumho Ecsta PS31
Nitto NT555
Winner: Kumho Ecsta PS31 — better handling, wet and snow. It leads or ties in every category we score. Nitto NT555 rests on little evidence so far (0 tests, 13 reviews), so read this result as provisional.
Kumho Ecsta PS31 scores 68 vs 49 on handling.
Kumho Ecsta PS31 scores 68 vs 51 on wet.
Kumho Ecsta PS31 scores 58 vs 42 on snow.
Kumho Ecsta PS31 scores 65 vs 51 on comfort.
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Ecsta PS31 or NT555?
Which is better in the wet, Ecsta PS31 or NT555?
Kumho Ecsta PS31, 68 vs 51 on our wet score.
Which grips better on dry roads, Ecsta PS31 or NT555?
Kumho Ecsta PS31, 63 vs 54 on our dry score.
Which is better in snow, Ecsta PS31 or NT555?
Kumho Ecsta PS31, 58 vs 42 on our snow score.
Which is quieter, Ecsta PS31 or NT555?
Kumho Ecsta PS31, 66 vs 59 on our noise score.
Which is more comfortable, Ecsta PS31 or NT555?
Kumho Ecsta PS31, 65 vs 51 on our comfort score.
Which lasts longer, Ecsta PS31 or NT555?
Kumho Ecsta PS31, 65 vs 52 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