Tests 62 · 7 tests Owners 78 · 11 reviews
Best test result: #1 of 10 in 2026 Vi Bilagare Summer Tyre Test (straight aquaplaning)
Nexen SB652 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 7 + 0 road tests and 11 + 6 owner reviews. How we score
N Fera Primus is ahead, 72–63
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Tests 62 · 7 tests Owners 78 · 11 reviews
Best test result: #1 of 10 in 2026 Vi Bilagare Summer Tyre Test (straight aquaplaning)
Tests – · none yet Owners 61 · 6 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | N Fera Primus | SB652 |
|---|---|---|
| Professional tests (TWG score) · 7 / – tests | 73 | ≈ 64 (est.) |
| Reviews found online | 77 | 59 |
N Fera Primus: 60% × 73.3 + 40% × 77.3 = 75
SB652: 60% × 64.1 (est.) + 40% × 58.6 = 62
No road tests of dry for SB652. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
| Source | N Fera Primus | SB652 |
|---|---|---|
| Professional tests (TWG score) · 7 / – tests | 86 | ≈ 65 (est.) |
| Reviews found online | 83 | 60 |
N Fera Primus: 60% × 85.8 + 40% × 83.3 = 85
SB652: 60% × 64.6 (est.) + 40% × 59.6 = 63
No road tests of wet for SB652. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | N Fera Primus | SB652 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 32 | ≈ 68 (est.) |
| Reviews found online | 73 | 66 |
N Fera Primus: 40% × 31.8 + 60% × 73.3 = 57
SB652: 40% × 68.2 (est.) + 60% × 66.3 = 67
No road tests of comfort for SB652. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | N Fera Primus | SB652 |
|---|---|---|
| Professional tests (TWG score) · 4 / – tests | 64 | – |
| Reviews found online | ≈ 66 (est.) | – |
N Fera Primus: 60% × 64.3 + 40% × 66.4 (est.) = 65
No owner ratings of noise for N Fera Primus. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
| Source | N Fera Primus | SB652 |
|---|---|---|
| Professional tests (TWG score) · 4 / – tests | 34 | ≈ 65 (est.) |
| Reviews found online | 77 | 64 |
N Fera Primus: 60% × 33.7 + 40% × 76.9 = 51
SB652: 60% × 65.5 (est.) + 40% × 63.6 = 65
No road tests of treadwear for SB652. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
| Source | N Fera Primus | SB652 |
|---|---|---|
| Reviews found online | 75 | 60 |
| Source | N Fera Primus | SB652 |
|---|---|---|
| Professional tests (TWG score) · 5 / – tests | 54 | – |
| Category | Nexen N Fera Primus | Nexen SB652 |
|---|---|---|
| Relative Score | 72 | 63 |
| Dry | 75 | 62 |
| Wet | 85 | 63 |
| Comfort | 57 | 67 |
| Noise | 65 | – |
| Treadwear | 51 | 65 |
| Handling (owners) | 75 | 60 |
| Efficiency | 54 | – |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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.
N Fera Primus
SB652
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · Nexen N Fera Primus | B · Nexen SB652 |
|---|---|---|
| Category | Summer | All Season |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 50 | — |
| Rim diameters | 15″ – 19″ | — |
| UTQG | — | 400 A A |
Nexen N Fera Primus
Nexen SB652
Winner: Nexen N Fera Primus — better wet, handling and dry. Pick the Nexen SB652 if treadwear and comfort matter most to you. Nexen SB652 rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional.
Nexen N Fera Primus scores 85 vs 63 on wet.
Nexen N Fera Primus scores 75 vs 60 on handling.
Nexen SB652 scores 65 vs 51 on treadwear.
Nexen N Fera Primus scores 75 vs 62 on dry.
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Nexen N Fera Primus, 85 vs 63 on our wet score.
Nexen N Fera Primus, 75 vs 62 on our dry score.
Nexen SB652, 67 vs 57 on our comfort score.
Nexen SB652, 65 vs 51 on our treadwear score.
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