Tests – · none yet Owners 63 · 259 reviews
Head-to-head
Updated
Kumho Ecsta PS31 vs Nexen N Fera SU4 — 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 + 81 owner reviews. How we score
N Fera SU4 is ahead, 78–66
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Tests – · none yet Owners 81 · 81 reviews
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
N Fera SU4 +1679Why this score
Source Ecsta PS31 N Fera SU4 Professional tests (TWG score) ≈ 65 (est.) ≈ 75 (est.) Reviews found online 60 85 Ecsta PS31: 60% × 64.6 (est.) + 40% × 59.7 = 63
N Fera SU4: 60% × 74.8 (est.) + 40% × 84.6 = 79
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 N Fera SU4. 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
N Fera SU4 +1482Why this score
Source Ecsta PS31 N Fera SU4 Professional tests (TWG score) ≈ 69 (est.) ≈ 79 (est.) Reviews found online 68 86 Ecsta PS31: 60% × 69 (est.) + 40% × 67.6 = 68
N Fera SU4: 60% × 78.9 (est.) + 40% × 85.7 = 82
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 N Fera SU4. 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
No comparison–Why this score
Source Ecsta PS31 N Fera SU4 Professional tests (TWG score) ≈ 64 (est.) – Reviews found online 49 – Ecsta PS31: 60% × 63.7 (est.) + 40% × 49.2 = 58
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).
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65
Comfort
N Fera SU4 +1176Why this score
Source Ecsta PS31 N Fera SU4 Professional tests (TWG score) ≈ 68 (est.) ≈ 71 (est.) Reviews found online 64 80 Ecsta PS31: 40% × 67.7 (est.) + 60% × 63.9 = 65
N Fera SU4: 40% × 70.9 (est.) + 60% × 79.7 = 76
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 N Fera SU4. 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
No comparison–Why this score
Source Ecsta PS31 N Fera SU4 Professional tests (TWG score) ≈ 66 (est.) – Reviews found online 66 – Ecsta PS31: 60% × 66.4 (est.) + 40% × 66.3 = 66
No road tests of noise for Ecsta PS31. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
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65
Treadwear
N Fera SU4 +671Why this score
Source Ecsta PS31 N Fera SU4 Professional tests (TWG score) ≈ 66 (est.) ≈ 69 (est.) Reviews found online 65 74 Ecsta PS31: 60% × 65.9 (est.) + 40% × 64.8 = 65
N Fera SU4: 60% × 69.2 (est.) + 40% × 73.9 = 71
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 N Fera SU4. 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)
N Fera SU4 +1179Why this score
Source Ecsta PS31 N Fera SU4 Reviews found online 68 79
Scores at a glance
| Category | Kumho Ecsta PS31 | Nexen N Fera SU4 |
|---|---|---|
| Relative Score | 66 | 78 |
| Dry | 63 | 79 |
| Wet | 68 | 82 |
| Snow | 58 | – |
| Comfort | 65 | 76 |
| Noise | 66 | – |
| Treadwear | 65 | 71 |
| Handling (owners) | 68 | 79 |
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
66
/ 100
Ecsta PS31
78
/ 100
N Fera SU4
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 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 N Fera SU4
Pros
- Outstanding value for money compared to major premium brands
- High level of ride comfort and low road noise
- Reliable and predictable grip in both dry and wet conditions
Cons
- Softer sidewalls can lead to less precise steering feedback and body roll during aggressive cornering
- Average or faster-than-expected treadwear for some driving styles
- Can become harder and noisier as the tire ages or wears down
Specs side by side
| Attribute | A · Kumho Ecsta PS31 | B · Nexen N Fera SU4 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 21 | — |
| Rim diameters | 15″ – 18″ | — |
| Tread depth | 10/32″ | — |
| UTQG | 460 A A | — |
| Sidewall | Blackwall | — |
| Max pressure | 51 psi | — |
Which one should you actually buy?
66
/ 100
Kumho Ecsta PS31
78
/ 100
Nexen N Fera SU4
Winner: Nexen N Fera SU4 — better dry, wet and comfort. It leads or ties in every category we score.
Pick tire B
You want the most grip on dry roads
Nexen N Fera SU4 scores 79 vs 63 on dry.
Pick tire B
Your priority is wet-weather safety
Nexen N Fera SU4 scores 82 vs 68 on wet.
Pick tire B
You want the most comfortable ride
Nexen N Fera SU4 scores 76 vs 65 on comfort.
Pick tire B
You enjoy sharp, responsive handling
Nexen N Fera SU4 scores 79 vs 68 on handling.
Tire A · Kumho Ecsta PS31
Tire B · Nexen N Fera SU4
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Ecsta PS31 or N Fera SU4?
Which is better in the wet, Ecsta PS31 or N Fera SU4?
Nexen N Fera SU4, 82 vs 68 on our wet score.
Which grips better on dry roads, Ecsta PS31 or N Fera SU4?
Nexen N Fera SU4, 79 vs 63 on our dry score.
Which is more comfortable, Ecsta PS31 or N Fera SU4?
Nexen N Fera SU4, 76 vs 65 on our comfort score.
Which lasts longer, Ecsta PS31 or N Fera SU4?
Nexen N Fera SU4, 71 vs 65 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