Tests – · none yet Owners 64 · 9 reviews
Head-to-head
Updated
Hankook Optimo K406 vs Nexen N Fera SU1 — 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 + 3 road tests and 9 + 164 owner reviews. How we score
Optimo K406 leads, 66–63 Narrow edge
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Tests 63 · 3 tests Owners 62 · 164 reviews
Best test result: #6 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.
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69
Dry
Optimo K406 +1059Why this score
Source Optimo K406 N Fera SU1 Professional tests (TWG score) · – / 2 tests ≈ 69 (est.) 55 Reviews found online 70 64 Optimo K406: 60% × 68.9 (est.) + 40% × 69.9 = 69
N Fera SU1: 60% × 55 + 40% × 64.2 = 59
No road tests of dry for Optimo K406. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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71
Wet
Optimo K406 +764Why this score
Source Optimo K406 N Fera SU1 Professional tests (TWG score) · – / 2 tests ≈ 71 (est.) 62 Reviews found online 71 67 Optimo K406: 60% × 71.1 (est.) + 40% × 71.3 = 71
N Fera SU1: 60% × 61.9 + 40% × 67.3 = 64
No road tests of wet for Optimo K406. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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–
Snow
No comparison58Why this score
Source Optimo K406 N Fera SU1 Professional tests (TWG score) – ≈ 63 (est.) Reviews found online – 50 N Fera SU1: 60% × 62.9 (est.) + 40% × 49.8 = 58
No road tests of snow for N Fera SU1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
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61
Comfort
N Fera SU1 +566Why this score
Source Optimo K406 N Fera SU1 Professional tests (TWG score) · – / 2 tests ≈ 67 (est.) 66 Reviews found online 57 66 Optimo K406: 40% × 67 (est.) + 60% × 57.3 = 61
N Fera SU1: 40% × 65.7 + 60% × 65.5 = 66
No road tests of comfort for Optimo K406. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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–
Noise
No comparison69Why this score
Source Optimo K406 N Fera SU1 Professional tests (TWG score) · – / 1 tests – 69 Reviews found online – 70 N Fera SU1: 60% × 69.3 + 40% × 69.7 = 69
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59
Treadwear
N Fera SU1 +766Why this score
Source Optimo K406 N Fera SU1 Professional tests (TWG score) · – / 1 tests ≈ 62 (est.) 70 Reviews found online 55 59 Optimo K406: 60% × 62.2 (est.) + 40% × 55.1 = 59
N Fera SU1: 60% × 70.2 + 40% × 59.2 = 66
No road tests of treadwear for Optimo K406. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
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58
Handling (owners)
N Fera SU1 +866Why this score
Source Optimo K406 N Fera SU1 Reviews found online 58 66 -
–
Efficiency
No comparison76Why this score
Source Optimo K406 N Fera SU1 Professional tests (TWG score) · – / 2 tests – 76
Scores at a glance
| Category | Hankook Optimo K406 | Nexen N Fera SU1 |
|---|---|---|
| Relative Score | 66 | 63 |
| Dry | 69 | 59 |
| Wet | 71 | 64 |
| Snow | – | 58 |
| Comfort | 61 | 66 |
| Noise | – | 69 |
| Treadwear | 59 | 66 |
| Handling (owners) | 58 | 66 |
| Efficiency | – | 76 |
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
Not important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Recomputed
Headline score
66
/ 100
Optimo K406
63
/ 100
N Fera SU1
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 Optimo K406
Pros
- Reliable dry-weather grip and handling performance
- Competitive value proposition as an entry-level or OE option
- Potential for high mileage in specific, low-stress driving conditions
Cons
- Inconsistent tread life with reports of premature wear
- Noticeable road noise during highway driving
- Susceptibility to sidewall bubbles and structural damage
Tire B N Fera SU1
Pros
- Exceptional value and significantly lower price compared to premium brands
- Remarkably quiet ride and high overall comfort
- Strong dry and wet grip for daily commuting and spirited driving
Cons
- Soft sidewalls can cause vague handling, body roll, or a floating sensation on heavier vehicles
- Faster than average tread wear or inconsistent durability for some users
- Reports of rubber cracking or splitting along the sidewalls and tread blocks over time
Specs side by side
| Attribute | A · Hankook Optimo K406 | B · Nexen N Fera SU1 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 3 | 97 |
| Rim diameters | 16″ – 18″ | 15″ – 24″ |
| Tread depth | — | 9/32″ |
| UTQG | — | 300 A A |
| Treadwear warranty | — | 25,000 mi |
| Sidewall | — | Blackwall |
| Max pressure | — | 51 psi |
| Sizes in common | 0 | 0 |
Which one should you actually buy?
66
/ 100
Hankook Optimo K406
63
/ 100
Nexen N Fera SU1
Narrow edge: Hankook Optimo K406 — better dry and wet. Pick the Nexen N Fera SU1 if handling, treadwear and comfort matter most to you. Hankook Optimo K406 rests on little evidence so far (0 tests, 9 reviews), so read this result as provisional.
Pick tire A
You want the most grip on dry roads
Hankook Optimo K406 scores 69 vs 59 on dry.
Pick tire B
You enjoy sharp, responsive handling
Nexen N Fera SU1 scores 66 vs 58 on handling.
Pick tire A
Your priority is wet-weather safety
Hankook Optimo K406 scores 71 vs 64 on wet.
Pick tire B
You want the longest tread life
Nexen N Fera SU1 scores 66 vs 59 on treadwear.
Tire A · Hankook Optimo K406
Tire B · Nexen N Fera SU1
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Optimo K406 or N Fera SU1?
Which is better in the wet, Optimo K406 or N Fera SU1?
Hankook Optimo K406, 71 vs 64 on our wet score.
Which grips better on dry roads, Optimo K406 or N Fera SU1?
Hankook Optimo K406, 69 vs 59 on our dry score.
Which is more comfortable, Optimo K406 or N Fera SU1?
Nexen N Fera SU1, 66 vs 61 on our comfort score.
Which lasts longer, Optimo K406 or N Fera SU1?
Nexen N Fera SU1, 66 vs 59 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