Falken Azenis FK520 vs Nexen N Fera Sport SU2
- TR Score
- 9.1/10
- Owners say
- 82% · 56
- TR Score
- 8.4/10
- Owners say
- 70% · 18
In the 8 independent tests that ran both tyres, the Falken Azenis FK520 finished ahead 6 times and the N Fera Sport SU2 twice. The Azenis FK520 lasted 15.3% longer in the wear tests; the N Fera Sport SU2 was 0.9 dB quieter.
Data updated
Which should you buy?
Buy the Falken Azenis FK520. It won six of the eight shared tests, brakes shorter in the wet, rolls easier and lasts longer, which makes it cheaper per kilometre despite costing more to buy. The Nexen N Fera Sport SU2 is worth considering only for its low noise, low price and its strong 2026 braking result.
Where the Azenis FK520 is stronger
- Finished ahead in six of the eight shared tests, including two where the Nexen was last
- Shorter wet braking in five of seven tests and lower rolling resistance in all four measurements
- Longer life in all three wear measurements and far less abrasion, 1305g against 1719g
Where the N Fera Sport SU2 is stronger
- 3rd of 50 in Auto Bild's 2026 braking super test with the Falken 14th
- Quieter in all five noise measurements
- Cheaper in all three price comparisons, 84 against 96 at Sport Auto
The bullet points are analysis of the shared tests and of owner reviews; the measured wins in each discipline are in the tables below. Where the two disagree, the figures are right.
Azenis FK520 vs N Fera Sport SU2 at a glance
| Category | Azenis FK520 | Gap | N Fera Sport SU2 |
|---|---|---|---|
| Shared tests won8 shared tests | 6 | 2 | |
| Dry12 measurements | 7 | The Azenis FK520 averaged a 0.9% higher speed on the dry handling course (3 tests) | 5 |
| Wet25 measurements | 14 | The Azenis FK520 stopped 1% shorter in the wet (7 tests) | 10 |
| Comfort6 measurements | 0 | The N Fera Sport SU2 was 0.9 dB quieter (5 tests) | 5 |
| Value10 measurements | 9 | The Azenis FK520 lasted 15.3% longer in the wear tests (3 tests) | 0 |
| Tyre Reviews Scoreevery test and review we hold | 9.1/10 | The Azenis FK520 by 0.7 | 8.4/10 |
| Owner rating56 and 18 reviews | 82% | The Azenis FK520 by 12 points | 70% |
| Would buy againshare of owners | 77% | The Azenis FK520 by 39 points | 38% |
| Pricein the 5 tests that listed prices | +14.1% | The Azenis FK520 was dearer in 5 of 5 | Cheaper |
| Sizes madeEU label registrations | 133 | 105 sizes made in both | 138 |
Wins count every measurement the shared tests recorded for both tyres; a tick marks the tyre ahead on that line. Subjective driver scores count as wins but are never averaged, because each test uses its own scale.
Head to head in 8 tests, 2023 to 2026
Each row is one published test in which both tyres ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Azenis FK520 | Field | N Fera Sport SU2 |
|---|---|---|---|
| 2026 Autobild Summer Tyre Test | P13 of 20 | P9 of 20 | |
| 2026 Summer Braking Super Tyre Test - How do 52 Tyres Perform in Wet and Dry Braking? | P14 of 50 | P3 of 50 | |
| 2026 ACE Summer Tyre Test | P4 of 10 | P10 of 10 | |
| 2025 ADAC Summer Tyre Test | P8 of 18 | P10 of 18 | |
| 2023 Sport Auto UHP Tyre Test | P7 of 11 | P11 of 11 | |
| 2023 AutoBild UHP Summer Tyre Test | P8 of 20 | P17 of 20 | |
| 2023 AZ UHP Summer Tyre Test | P6 of 10 | P7 of 10 | |
| 2023 Summer Tyre Market Overview | P8 of 50 | P14 of 50 |
Performance profile
10 measurements from the 8 shared tests, each tyre shown as its share of the better figure in every test.
Where each is furthest ahead
Azenis FK520
N Fera Sport SU2
Point at or tap any spoke for both tyres' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 36 m stop against 34.2 m is 95%; each spoke averages the shared tests that recorded it. The scale stops at 96%: a point further in sits on the hub's edge, hollow. 10 measurements recorded in only one shared test are left off; every measurement is in the table further down.
Where each scores higher
Azenis FK520
N Fera Sport SU2
Point at or tap any spoke for both tyres' figures.
Category scores are percentiles among tyres of the same season and class: 90 means this tyre out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Where owners rate each higher
Azenis FK520
N Fera Sport SU2
Not ahead in any category
Point at or tap any spoke for both tyres' figures.
Owners rate the Azenis FK520 82% from 56 reviews and the N Fera Sport SU2 70% from 18. Each spoke is one question owners answer out of 10; reviews are vetted by hand before publication.
Every measurement, side by side
Averages of the figures both tyres posted in the same tests. The gap is the average of each test's own gap, so figures from different cars and years are never mixed. Open a discipline for its measurements, and a measurement for every test's figure.
| Measurement | Azenis FK520 | Gap | N Fera Sport SU2 | Wins | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 34.5 | 0.4% | 34.63 | 4-3 | |||||||||||||||||||||||||||||
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| 99.4 | 1.6% | 101 | 1-0 | |||||||||||||||||||||||||||||
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| 106.1 | 0.9% | 105.1 | 2-1 | |||||||||||||||||||||||||||||
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| scored | 26.4% | scored | 0-1 | |||||||||||||||||||||||||||||
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| 33.64 | 1% | 34.07 | 5-2 | |||||||||||||||||||||||||||||
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| 37.7 | 2.1% | 38.5 | 1-0 | |||||||||||||||||||||||||||||
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| 68.9 | 0.4% | 69.2 | 1-0 | |||||||||||||||||||||||||||||
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| 79.17 | 0.6% | 79.67 | 0-3 | |||||||||||||||||||||||||||||
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| scored | = | scored | 0-0 | |||||||||||||||||||||||||||||
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| 8.3 | 0.2% | 8.28 | 1-0 | |||||||||||||||||||||||||||||
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| 14.32 | 0.5% | 14.39 | 1-1 | |||||||||||||||||||||||||||||
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| 86.76 | = | 86.74 | 3-2 | |||||||||||||||||||||||||||||
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| 3.24 | 2.2% | 3.17 | 2-2 | |||||||||||||||||||||||||||||
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| scored | = | scored | 0-0 | |||||||||||||||||||||||||||||
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| 71.4 | 0.9 dB | 70.48 | 0-5 | |||||||||||||||||||||||||||||
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| 47,860 | 15.3% | 41,970 | 3-0 | |||||||||||||||||||||||||||||
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| 8.35 | 3.5% | 8.65 | 4-0 | |||||||||||||||||||||||||||||
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| 5.6 | = | 5.6 | 0-0 | |||||||||||||||||||||||||||||
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| 61.9 | 17.1% | 74.7 | 1-0 | |||||||||||||||||||||||||||||
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| 1,305 | 24.1% | 1,719 | 1-0 | |||||||||||||||||||||||||||||
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Braking distances and lap times are better when lower; speeds, wear and grip figures when higher. A test's figures are its own: sizes, cars, surfaces and temperatures differ from one to the next, which is why the averages here are only ever of tests the two tyres shared. "Scored" rows are subjective driver ratings: each test uses its own scale, so only the wins are counted.
Scores beyond the shared tests
On the Tyre Reviews Score, which weighs every test and review we hold, the Azenis FK520 scores 9.1 and the N Fera Sport SU2 8.4 out of 10.
| Azenis FK520 | Category | N Fera Sport SU2 | ||
|---|---|---|---|---|
| 90 | Dry | 78 | ||
| 83 | Wet | 76 | ||
| 57 | Comfort | 91 | ||
| 54 | Value | 29 | ||
Category scores are percentiles among tyres of the same season and class: 90 means this tyre out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
What owners say
| Azenis FK520 | Category | N Fera Sport SU2 | ||
|---|---|---|---|---|
| 8.8 | Dry Grip | 8.1 | ||
| 8.4 | Wet Grip | 7.7 | ||
| 7.9 | Road Feedback | 7.8 | ||
| 8.4 | Handling | 7.7 | ||
| 7.7 | Wear | 5.6 | ||
| 8.1 | Comfort | 6.4 | ||
Owners rate the Azenis FK520 82% from 56 reviews and the N Fera Sport SU2 70% from 18. Reviews are vetted by hand before publication; ownership is not verified.
Falken Azenis FK520
- 82%from 56 reviews
- 77%would buy again
- 418,489 milesdriven by reviewers
Owners generally rate the Falken Azenis FK520 highly (average 79.6%), most often praising its strong dry grip and capable wet grip for the money. Comfort and refinement also come through well, with many describing it as quiet and compliant for a UHP-style tyre, and around one in five explicitly calling it great value. The main recurring drawbacks are mixed steering feel (some find it sharp, others a bit numb) and a smaller but notable group reporting vibration/balance issues; wet handling is also more divided than outright wet grip.
- Strong dry grip, comparable to premium brands
- Reassuring wet grip
- Comfortable ride despite sporty intent
- Low road noise on motorway speeds
- Occasional vibration or balancing issues at speed
- Steering feel can be a bit numb or lacking feedback
- Wet handling feels less confidence-inspiring for some
Summarised by AI from 49 vetted reviews; the reviews themselves are on the tyre page.
All 56 Azenis FK520 reviewsFalken Azenis fk520 have been a great tyre, noise level is not intrusive and they give a good return on fuel economy. These tyres are very progressive and give good feed back. Having watched a back to back comparison with the Michelin PS4, the Falkens are punching way above their price range. If you want near PS4 performance at kumho prices, you won't go far wrong...will definitely try out the latest incarnation, Falken azenis R820 when the fk520's are done.
Nexen N Fera Sport SU2
- 70%from 18 reviews
- 38%would buy again
- 141,160 milesdriven by reviewers
Drivers describe the Nexen N Fera Sport SU2 as a strong value-focused performance tyre with very good dry and wet grip, confident handling, and stability at speed for the money. However, a large share of users report short tread life (often with heavy/uneven shoulder wear) and many also mention poor refinement as the tyre ages, including increased road noise and a harsher ride. Overall sentiment is mixed, with performance praised but longevity and comfort commonly limiting repeat purchases.
- Very good dry grip and handling
- Strong wet grip and confidence in rain
- Good value/price versus premium brands
- Stable and predictable at higher speeds
- Fast wear/short tread life (often uneven shoulder wear)
- High road noise and mediocre comfort/harsh ride
- Weaker performance in cold temperatures
Summarised by AI from 15 vetted reviews; the reviews themselves are on the tyre page.
All 18 N Fera Sport SU2 reviewsI've driven the tyre's about 40 000km on my family diesel wagon.The final result is four summers and they're gone.The protector is about 4mm,the outer side of the tires is melted like slick tire,and pieces of rubber come off.After a little bump one of the tires got a puncture in the side board,which surprised me a little,but for the price everything is OK.The grip is very good in wet and dry,they perform good in dynamic driving...when they new :)
Sizes, EU label and lineage
From the EU label registrations for each tyre: 133 sizes of the Azenis FK520 and 138 of the N Fera Sport SU2, 105 of them made in both.
| Category | Azenis FK520 | N Fera Sport SU2 |
|---|---|---|
| Season | Summer | Summer |
| Sizes made | 133 sizes, 17 to 22 inch | 138 sizes, 16 to 22 inch |
| Made in both | 105 sizes 205/45 R17215/45 R17225/45 R17225/50 R17225/55 R17235/60 R17205/40 R18215/35 R18215/50 R18215/55 R18225/35 R18225/40 R18and 93 more | |
| EU label wet grip | A95%B5% | A64%B34%C2% |
| EU label rolling resistance | C68%A12%B12%D8% | C36%A26%D25%B13% |
| EU label noise | 68-72 dB B51%A49% | 68-75 dB B80%A20% |
| Severe snow (3PMSF) sizes | 0 of 179 | 2 of 266 |
| Replaced | Falken Azenis FK510 (2016) | Nexen N Fera SU1 (2012) |
| Price in the shared tests | The Azenis FK520 was the dearer tyre in 5 of the 5 tests that listed prices, by 14.1% on average. Each test priced the tyres in its own market at the time; only the gap is comparable. | |
Label grades are shown as the share of registered sizes carrying each grade, so "B (88%), C (12%)" means most sizes are B. Grades vary by size; check the label for yours.
Reading the results
Written from the test results and owner reviews above. It is analysis, not a measurement: where it and the tables disagree, the tables are right.
Eight shared tests, six wins for the Falken Azenis FK520, and the two the Nexen N Fera Sport SU2 took were both in 2026: 9th of 20 against 13th in Auto Bild's summer test and 3rd of 50 against 14th in its braking super test.
Away from those, the Falken has the better record. It was 4th of 10 at ACE in 2026 with the Nexen last, 8th of 21 at Auto Bild in 2023 with the Nexen 17th, 7th of 11 at Sport Auto with the Nexen last, and 8th of 18, 6th of 10 and 8th of 48 elsewhere. It braked shorter in the wet in five of seven tests and it rolled with less resistance in all four measurements.
Wear is the other landslide. The Falken lasted longer in all three measurements, 52,080km against 47,810km at Auto Bild in 2026 and 46,700km against 43,700km at ADAC, and it abraded far less, 1305g against 1719g.
Conclusion
The Falken Azenis FK520 is the better tyre on the balance of eight shared tests, winning six. Its clearest results are 4th of 10 at ACE in 2026 where the Nexen N Fera Sport SU2 was last of ten, 7th of 11 at Sport Auto where the Nexen was again last, and 8th of 21 at Auto Bild in 2023 against 17th. It braked shorter in the wet in five of seven tests and in the dry in four of seven, it won three of four dry handling comparisons, and it rolled with less resistance in all four measurements, 7.71 against 8.04 kg/t at Auto Bild in 2026. It also lasted longer in all three wear measurements and abraded far less, 1305g against 1719g at Auto Bild and 61.9 against 74.7mg/km/t at ADAC. Owners score it 8.70 across 43 reviews against 8.00 from 17.
The Nexen N Fera Sport SU2 has one very strong card: braking on its day. It was 3rd of 50 in Auto Bild's 2026 braking super test with the Falken 14th, and 9th of 20 in the full test with the Falken 13th, stopping 4 percent shorter in the dry, 33.9m against 35.3m. It was also quieter in all five noise measurements, cheaper in all three price comparisons, 84 against 96 at Sport Auto, and it won three of four wet handling comparisons.
Note how those recent Nexen wins sit against the older pattern. The two 2026 Auto Bild results are its best in this comparison by a distance, while at Sport Auto and ACE it finished last of the field with the Falken mid-pack. On the whole record the Falken is the safer buy, and the tread life gap makes it the cheaper one to run despite the higher ticket price.
Azenis FK520 vs N Fera Sport SU2: your questions
Is the Falken Azenis FK520 or the Nexen N Fera Sport SU2 the better tyre?
In the 8 independent tests that ran both tyres, the Falken Azenis FK520 finished ahead 6 times and the N Fera Sport SU2 twice. On the Tyre Reviews Score, which weighs every test and review we hold, the Azenis FK520 scores 9.1 and the N Fera Sport SU2 8.4 out of 10.
Which is better in the wet, the Azenis FK520 or the N Fera Sport SU2?
The Azenis FK520 led 14 of the 25 wet measurements the shared tests recorded. On average it stopped 1% shorter in the wet across 7 tests.
Which is better in the dry?
The Azenis FK520 led 7 of the 12 dry measurements the shared tests recorded. On average it averaged a 0.9% higher speed on the dry handling course across 3 tests.
Which lasts longer and costs less to run?
The Azenis FK520 lasted 15.3% longer in the wear tests (3 tests) and had 3.5% lower rolling resistance (4 tests). Owners rate wear 7.7/10 for the Azenis FK520 and 5.6/10 for the N Fera Sport SU2.
Which is quieter and more comfortable?
The N Fera Sport SU2 was 0.9 dB quieter (5 tests). Owners rate comfort 8.1/10 for the Azenis FK520 and 6.4/10 for the N Fera Sport SU2.
What do owners say?
Owners rate the Azenis FK520 82% from 56 reviews and the N Fera Sport SU2 70% from 18. 77% of Azenis FK520 owners would buy it again, against 38% for the N Fera Sport SU2.
Which is more expensive?
In the 5 tests that listed prices, the Azenis FK520 was the dearer tyre in 5 of them, by 14.1% on average. Prices are the test's own at the time, in its own market.
Are they available in the same sizes?
The Azenis FK520 is made in 133 sizes (17 to 22 inch) and the N Fera Sport SU2 in 138 (16 to 22 inch). 105 sizes are available in both. On the EU label the Azenis FK520 is graded A for wet grip and C for rolling resistance in most sizes; the N Fera Sport SU2 A and C.
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Run either of these?
Your review is the part of this page no test can supply: how the tyre wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tyres ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tyre Reviews Score rates each tyre out of 10 from every independent test result and vetted owner review we hold, so two tyres can be compared even before a test has run them together.
Who does the testing
Every test published as a Tyre Reviews test is run by Jonathan Benson, who has been testing tyres independently since 2007.
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