Tests 62 · 4 tests Owners 72 · 17 reviews
Best test result: #6 of 50 in 2023 ADAC Summer Tyre Test (value)
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Primacy 4+ is ahead, 78–67
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests 62 · 4 tests Owners 72 · 17 reviews
Best test result: #6 of 50 in 2023 ADAC Summer Tyre Test (value)
Tests 83 · 10 tests Owners 72 · 39 reviews
Best test result: #1 of 16 in 2024 ADAC Summer Tyre Test (abrasion)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Altimax One S | Primacy 4+ |
|---|---|---|
| Professional tests (TWG score) | 53 | 82 |
| Reviews found online | 74 | 73 |
| Dry Braking (% of best) | 91% | 97% |
| Source | Altimax One S | Primacy 4+ |
|---|---|---|
| Professional tests (TWG score) | 60 | 79 |
| Reviews found online | 72 | 75 |
| Wet Braking (% of best) | 78% | 91% |
| Wet Braking - Concrete (% of best) | 81% | 93% |
| Source | Altimax One S | Primacy 4+ |
|---|---|---|
| Professional tests (TWG score) | – | 72 |
| Reviews found online | 68 | 72 |
| Source | Altimax One S | Primacy 4+ |
|---|---|---|
| Professional tests (TWG score) | – | 75 |
| Source | Altimax One S | Primacy 4+ |
|---|---|---|
| Professional tests (TWG score) | 72 | 91 |
| Reviews found online | 72 | 71 |
| Source | Altimax One S | Primacy 4+ |
|---|---|---|
| Reviews found online | 70 | 69 |
| Category | General Altimax One S | Michelin Primacy 4+ |
|---|---|---|
| Relative Score | 67 | 78 |
| Dry | 61 | 79 |
| Wet | 65 | 77 |
| Comfort | 68 | 72 |
| Noise | – | 72 |
| Treadwear | 72 | 83 |
| Handling | 70 | 69 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Neither tire has a score here yet, so this weight changes nothing.
Altimax One S
Primacy 4+
Only categories both tires have data for count toward the headline score.
Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.
| Discipline | Category | Altimax One S | Primacy 4+ | Δ | Both? |
|---|---|---|---|---|---|
| Dry Braking | Dry | 91% #22/49 · 2020 Tyre Market Overview Braking Test | 97% #5/8 · 2023 Motor Summer Tyre Test | −6.3 | Different tests |
| Fuel Consumption | Fuel | 96% #17/50 · 2023 ADAC Summer Tyre Test | 98% #6/16 · 2024 ADAC Summer Tyre Test | −1.8 | Different tests |
| Abrasion | Other | 46% #24/50 · 2023 ADAC Summer Tyre Test | 100% #1/16 · 2024 ADAC Summer Tyre Test | −54.0 | Different tests |
| Value | Other | 66% #6/50 · 2023 ADAC Summer Tyre Test | 53% #16/50 · 2023 ADAC Summer Tyre Test | +13.1 | Same test |
| Wear | Other | 57% #16/50 · 2023 ADAC Summer Tyre Test | 86% #4/50 · 2023 ADAC Summer Tyre Test | −28.7 | Same test |
| Overall Ranking | Overall | 3% #33/49 · 2020 Tyre Market Overview Braking Test | 25% #4/8 · 2025 EV Tyre Test | −22.0 | Different tests |
| Straight Aqua | Straight | 90% #42/50 · 2023 ADAC Summer Tyre Test | 82% #7/8 · 2025 EV Tyre Test | +7.9 | Different tests |
| Wet Braking | Wet | 78% #39/50 · 2023 ADAC Summer Tyre Test | 91% #5/8 · 2025 EV Tyre Test | −12.8 | Different tests |
| Wet Braking - Concrete | Wet | 81% #38/50 · 2023 ADAC Summer Tyre Test | 93% #11/50 · 2023 ADAC Summer Tyre Test | −12.1 | Same test |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · General Altimax One S | B · Michelin Primacy 4+ |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
General Altimax One S
Michelin Primacy 4+
Winner: Michelin Primacy 4+ — better dry, wet and treadwear. It leads or ties in every category we score.
Michelin Primacy 4+ scores 79 vs 61 on dry.
Michelin Primacy 4+ scores 77 vs 65 on wet.
Michelin Primacy 4+ scores 83 vs 72 on treadwear.
Michelin Primacy 4+ scores 72 vs 68 on comfort.
TireWheelGuide may earn a commission from purchases made through these links.
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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.