Tests – · none yet Owners 50 · 3 reviews
Falken Azenis FK453 Runflat looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Nexen N FERA SUR4 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Head-to-head
Updated
Falken Azenis FK453 Runflat vs Nexen N FERA SUR4 — 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 3 + 6 owner reviews. How we score
N FERA SUR4 is ahead, 62–56
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Tests – · none yet Owners 57 · 6 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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55
Dry
N FERA SUR4 +1671Why this score
Source Azenis FK453 Runflat N FERA SUR4 Professional tests (TWG score) ≈ 60 (est.) ≈ 70 (est.) Reviews found online 48 73 Azenis FK453 Runflat: 60% × 59.7 (est.) + 40% × 47.9 = 55
N FERA SUR4: 60% × 69.9 (est.) + 40% × 73.2 = 71
No road tests of dry for Azenis FK453 Runflat. 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 N FERA SUR4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
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59
Wet
Azenis FK453 Runflat +455Why this score
Source Azenis FK453 Runflat N FERA SUR4 Professional tests (TWG score) ≈ 61 (est.) ≈ 59 (est.) Reviews found online 55 50 Azenis FK453 Runflat: 60% × 61.3 (est.) + 40% × 54.7 = 59
N FERA SUR4: 60% × 58.8 (est.) + 40% × 50.1 = 55
No road tests of wet for Azenis FK453 Runflat. 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 N FERA SUR4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
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61
Comfort
Azenis FK453 Runflat +160Why this score
Source Azenis FK453 Runflat N FERA SUR4 Professional tests (TWG score) ≈ 66 (est.) ≈ 66 (est.) Reviews found online 53 51 Azenis FK453 Runflat: 60% × 66.3 (est.) + 40% × 52.8 = 61
N FERA SUR4: 60% × 65.9 (est.) + 40% × 50.6 = 60
No road tests of comfort for Azenis FK453 Runflat or N FERA SUR4. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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56
Treadwear
Azenis FK453 Runflat +155Why this score
Source Azenis FK453 Runflat N FERA SUR4 Professional tests (TWG score) ≈ 60 (est.) ≈ 60 (est.) Reviews found online 49 47 Azenis FK453 Runflat: 60% × 60.4 (est.) + 40% × 48.6 = 56
N FERA SUR4: 60% × 59.8 (est.) + 40% × 46.7 = 55
No road tests of treadwear for Azenis FK453 Runflat. 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 N FERA SUR4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
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49
Handling (owners)
N FERA SUR4 +2271Why this score
Source Azenis FK453 Runflat N FERA SUR4 Reviews found online 49 71
Scores at a glance
| Category | Falken Azenis FK453 Runflat | Nexen N FERA SUR4 |
|---|---|---|
| Relative Score | 56 | 62 |
| Dry | 55 | 71 |
| Wet | 59 | 55 |
| Comfort | 61 | 60 |
| Treadwear | 56 | 55 |
| Handling (owners) | 49 | 71 |
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
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
56
/ 100
Azenis FK453 Runflat
62
/ 100
N FERA SUR4
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Azenis FK453 Runflat
Pros
- Competitive pricing compared to premium run-flat alternatives
- Strong dry handling and cornering performance
- Lower noise levels than some factory-fitted run-flat tires
Cons
- Highly inconsistent tread life, with reports of premature wear
- Mediocre wet weather grip, particularly in lateral cornering
- Vague steering feedback reported by some drivers
Tire B N FERA SUR4
Pros
- Exceptional dry grip and track-day performance
- Precise steering feedback and predictable handling
- Cost-effective alternative to more expensive track tires
Cons
- High level of road noise
- Poor wet-weather performance and dangerous hydroplaning tendencies in heavy rain
- Fast tread wear
Specs side by side
| Attribute | A · Falken Azenis FK453 Runflat | B · Nexen N FERA SUR4 |
|---|---|---|
| Category | Summer Ultra High Performance tires | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
Which one should you actually buy?
56
/ 100
Falken Azenis FK453 Runflat
62
/ 100
Nexen N FERA SUR4
Winner: Nexen N FERA SUR4 — better handling and dry. Pick the Falken Azenis FK453 Runflat if wet matters most to you. Falken Azenis FK453 Runflat rests on little evidence so far (0 tests, 3 reviews), so read this result as provisional. Nexen N FERA SUR4 rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional.
Pick tire B
You enjoy sharp, responsive handling
Nexen N FERA SUR4 scores 71 vs 49 on handling.
Pick tire B
You want the most grip on dry roads
Nexen N FERA SUR4 scores 71 vs 55 on dry.
Pick tire A
Your priority is wet-weather safety
Falken Azenis FK453 Runflat scores 59 vs 55 on wet.
Tire A · Falken Azenis FK453 Runflat
Tire B · Nexen N FERA SUR4
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Azenis FK453 Runflat or N FERA SUR4?
Which is better in the wet, Azenis FK453 Runflat or N FERA SUR4?
Falken Azenis FK453 Runflat, 59 vs 55 on our wet score.
Which grips better on dry roads, Azenis FK453 Runflat or N FERA SUR4?
Nexen N FERA SUR4, 71 vs 55 on our dry score.
Which is more comfortable, Azenis FK453 Runflat or N FERA SUR4?
Neither, by our numbers: 61 vs 60 on the comfort score, within 3 points.
Which lasts longer, Azenis FK453 Runflat or N FERA SUR4?
Neither, by our numbers: 56 vs 55 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