Tests – · none yet Owners 72 · 6 reviews
Dunlop SP Sport 01 AS looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Dunlop SP Sport 01 AS vs Nexen N Fera Primus — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 7 road tests and 6 + 11 owner reviews. How we score
SP Sport 01 AS leads, 73–70 Narrow edge
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Tests 61 · 7 tests Owners 77 · 11 reviews
Best test result: #1 of 10 in 2026 Vi Bilagare Summer Tyre Test (straight aquaplaning)
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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73
Dry
N Fera Primus +174Why this score
Source SP Sport 01 AS N Fera Primus Professional tests (TWG score) · – / 7 tests ≈ 71 (est.) 73 Reviews found online 76 76 SP Sport 01 AS: 60% × 71.1 (est.) + 40% × 76.2 = 73
N Fera Primus: 60% × 73.2 + 40% × 76.2 = 74
No road tests of dry for SP Sport 01 AS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
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72
Wet
N Fera Primus +1284Why this score
Source SP Sport 01 AS N Fera Primus Professional tests (TWG score) · – / 7 tests ≈ 72 (est.) 85 Reviews found online 73 82 SP Sport 01 AS: 60% × 71.8 (est.) + 40% × 73.3 = 72
N Fera Primus: 60% × 85.2 + 40% × 82 = 84
No road tests of wet for SP Sport 01 AS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
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58
Snow
No comparison–Why this score
Source SP Sport 01 AS N Fera Primus Professional tests (TWG score) ≈ 63 (est.) – Reviews found online 50 – SP Sport 01 AS: 60% × 63.3 (est.) + 40% × 50.1 = 58
No road tests of snow for SP Sport 01 AS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
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73
Comfort
SP Sport 01 AS +2548Why this score
Source SP Sport 01 AS N Fera Primus Professional tests (TWG score) · – / 1 tests ≈ 70 (est.) 32 Reviews found online 77 71 SP Sport 01 AS: 60% × 70.4 (est.) + 40% × 76.5 = 73
N Fera Primus: 60% × 32.2 + 40% × 71.3 = 48
No road tests of comfort for SP Sport 01 AS. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
-
–
Noise
No comparison65Why this score
Source SP Sport 01 AS N Fera Primus Professional tests (TWG score) · – / 4 tests – 64 Reviews found online – ≈ 67 (est.) N Fera Primus: 60% × 64.3 + 40% × 67.3 (est.) = 65
No owner ratings of noise for N Fera Primus. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
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72
Treadwear
SP Sport 01 AS +2349Why this score
Source SP Sport 01 AS N Fera Primus Professional tests (TWG score) · – / 4 tests ≈ 69 (est.) 33 Reviews found online 77 74 SP Sport 01 AS: 60% × 69 (est.) + 40% × 76.5 = 72
N Fera Primus: 60% × 32.9 + 40% × 73.6 = 49
No road tests of treadwear for SP Sport 01 AS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
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78
Handling (owners)
SP Sport 01 AS +375Why this score
Source SP Sport 01 AS N Fera Primus Reviews found online 78 75
Scores at a glance
| Category | Dunlop SP Sport 01 AS | Nexen N Fera Primus |
|---|---|---|
| Relative Score | 73 | 70 |
| Dry | 73 | 74 |
| Wet | 72 | 84 |
| Snow | 58 | – |
| Comfort | 73 | 48 |
| Noise | – | 65 |
| Treadwear | 72 | 49 |
| Handling (owners) | 78 | 75 |
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.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
SP Sport 01 AS
N Fera Primus
Only categories both tires have data for count toward the headline score.
The professional test results behind the scores
Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.
| Discipline | Category | SP Sport 01 AS | N Fera Primus | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #5/10 2014 All Season Tyre Test | #7/10 2026 Vi Bilagare Summer Tyre Test | – | Different tests |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A SP Sport 01 AS
Pros
- Exceptionally quiet, smooth, and comfortable ride quality
- Surprising and reliable traction and handling in deep snow
- Good overall braking and grip performance compared to previous tires
Cons
- Reports of weak sidewalls leading to premature damage
- High cost relative to longevity when durability issues arise
Tire B N Fera Primus
Pros
- Fantastic dry and wet grip with stable cornering and predictable handling
- High level of comfort with a smooth, soft ride that absorbs bumps well
- Noticeably quieter than certain premium alternatives
Cons
- Slightly longer braking distances compared to some competing brands like Falken
- Reports of faster tread wear and relatively low initial tread depth
- Can be noisy for some drivers depending on the vehicle and road conditions
Specs side by side
| Attribute | A · Dunlop SP Sport 01 AS | B · Nexen N Fera Primus |
|---|---|---|
| Category | All Season | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | — | 50 |
| Rim diameters | — | 15″ – 19″ |
Which one should you actually buy?
Dunlop SP Sport 01 AS
Nexen N Fera Primus
Narrow edge: Dunlop SP Sport 01 AS — better comfort and treadwear. Pick the Nexen N Fera Primus if wet matters most to you. Dunlop SP Sport 01 AS rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional.
Dunlop SP Sport 01 AS scores 73 vs 48 on comfort.
Dunlop SP Sport 01 AS scores 72 vs 49 on treadwear.
Nexen N Fera Primus scores 84 vs 72 on wet.
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SP Sport 01 AS or N Fera Primus?
Which is better in the wet, SP Sport 01 AS or N Fera Primus?
Nexen N Fera Primus, 84 vs 72 on our wet score.
Which grips better on dry roads, SP Sport 01 AS or N Fera Primus?
Neither, by our numbers: 73 vs 74 on the dry score, within 3 points.
Which is more comfortable, SP Sport 01 AS or N Fera Primus?
Dunlop SP Sport 01 AS, 73 vs 48 on our comfort score.
Which lasts longer, SP Sport 01 AS or N Fera Primus?
Dunlop SP Sport 01 AS, 72 vs 49 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