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Head-to-head Updated

General Altimax One S vs Toyo Observe GSi-6 HP — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Observe GSi-6 HP is ahead, 73–66

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Tire AGeneral

Altimax One S

Summer

Tests 60 · 4 tests Owners 71 · 17 reviews

Best test result: #17 of 50 in 2023 ADAC Summer Tyre Test (fuel consumption)

Tire BToyo

Observe GSi-6 HP

Winter

Tests 69 · 2 tests Owners 75 · 14 reviews

Best test result: #5 of 20 in 2020 Nordic and Studded Winter Tyre Test (dry braking)

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 59

    Dry

    Observe GSi-6 HP +16
    75
    Why this score
    SourceAltimax One SObserve GSi-6 HP
    Professional tests (TWG score)5073
    Reviews found online7279
    Dry Braking (% of best)89%97%
  2. 64

    Wet

    Observe GSi-6 HP +11
    75
    Why this score
    SourceAltimax One SObserve GSi-6 HP
    Professional tests (TWG score)5971
    Reviews found online7281
    Wet Braking (% of best)81%81%
  3. –

    Snow

    No comparison
    66
    Why this score
    SourceAltimax One SObserve GSi-6 HP
    Professional tests (TWG score)–60
    Reviews found online–75
  4. 68

    Comfort

    Observe GSi-6 HP +9
    77
    Why this score
    SourceAltimax One SObserve GSi-6 HP
    Professional tests (TWG score)–77
    Reviews found online6777
  5. –

    Noise

    No comparison
    70
    Why this score
    SourceAltimax One SObserve GSi-6 HP
    Professional tests (TWG score)–72
  6. 71

    Treadwear

    Altimax One S +6
    65
    Why this score
    SourceAltimax One SObserve GSi-6 HP
    Professional tests (TWG score)72–
    Reviews found online7165
  7. 70

    Handling

    Observe GSi-6 HP +7
    77
    Why this score
    SourceAltimax One SObserve GSi-6 HP
    Reviews found online7077
Scores at a glance
CategoryGeneral Altimax One SToyo Observe GSi-6 HP
Relative Score 66 73
Dry 59 75
Wet 64 75
Snow – 66
Comfort 68 77
Noise – 70
Treadwear 71 65
Handling 70 77

Higher is better. The Relative Score follows your weights below; category scores do not change.

Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

Important
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Important
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Neutral
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Neither tire has a score here yet, so this weight changes nothing.

Less important
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Less important
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Neither tire has a score here yet, so this weight changes nothing.

Important
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Neutral
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Recomputed
Headline score

Altimax One S

Observe GSi-6 HP

Only categories both tires have data for count toward the headline score.

The professional test results behind the scores

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.

DisciplineCategoryAltimax One SObserve GSi-6 HPΔBoth?
Dry Braking Dry 89% #41/50 · 2023 ADAC Summer Tyre Test 97% #5/20 · 2020 Nordic and Studded Winter Tyre Test −8.0 Different tests
Fuel Consumption Fuel 96% #17/50 · 2023 ADAC Summer Tyre Test 96% #10/20 · 2025 Studded, Friction and European Winter Tyre Test +0.3 Different tests
Overall Ranking Overall 3% #33/49 · 2020 Tyre Market Overview Braking Test 8% #12/20 · 2025 Studded, Friction and European Winter Tyre Test −5.3 Different tests
Straight Aqua Straight 90% #42/50 · 2023 ADAC Summer Tyre Test 83% #9/20 · 2025 Studded, Friction and European Winter Tyre Test +7.0 Different tests
Wet Braking Wet 81% #32/49 · 2020 Tyre Market Overview Braking Test 81% #7/20 · 2020 Nordic and Studded Winter Tyre Test −0.1 Different tests

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Altimax One S

Pros

  • Exceptional wet-weather grip and high driver confidence in the rain
  • High level of ride comfort and quietness for most daily driving conditions
  • Good tread wear longevity and overall value for money compared to premium brands

Cons

  • Notable tire and road noise reported by multiple users
  • Unresponsive steering feel and lack of sporty handling characteristics
  • Very soft sidewalls that are vulnerable to punctures from minor hazards like thorns
All owner themes in the Altimax One S review

Tire B Observe GSi-6 HP

Pros

  • Exceptional traction and stability in snow and slush
  • Impressive wet-weather performance and hydroplaning resistance
  • Remarkably quiet ride quality for a winter tire

Cons

  • Inconsistent tread life reports, with some users experiencing premature wear
  • Occasional reports of structural failure or tread separation
  • Slightly vague steering feel at lower speeds
All owner themes in the Observe GSi-6 HP review

Specs side by side

Attribute A · General Altimax One S B · Toyo Observe GSi-6 HP
CategorySummerWinter
Vehicle typePassenger Car / Crossover—
Sizes available8139
Rim diameters15″ – 20″16″ – 21″
Tread depth—11 - 12/32″
Sidewall—Black Side Wall
Max pressure—50 - 51 psi

Which one should you actually buy?

General Altimax One S

Toyo Observe GSi-6 HP

Winner: Toyo Observe GSi-6 HP — better dry, wet and comfort. Pick the General Altimax One S if treadwear matters most to you.

Pick tire B You want the most grip on dry roads

Toyo Observe GSi-6 HP scores 75 vs 59 on dry.

Pick tire B Your priority is wet-weather safety

Toyo Observe GSi-6 HP scores 75 vs 64 on wet.

Pick tire B You want the most comfortable ride

Toyo Observe GSi-6 HP scores 77 vs 68 on comfort.

Pick tire B You enjoy sharp, responsive handling

Toyo Observe GSi-6 HP scores 77 vs 70 on handling.

Tire A · General Altimax One S
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Tire B · Toyo Observe GSi-6 HP
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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.

Community buzz from Reddit and forums is shown for context only — it never changes the score.

73

Leads

Observe GSi-6 HP

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