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Yokohama iceGUARD iG52c looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Toyo Observe GSi-6 HP vs Yokohama iceGUARD iG52c — 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 2 + 0 road tests and 14 + 1 owner reviews. How we score

Check price on Amazon · Observe GSi-6 HP Check price on Amazon · iceGUARD iG52c
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Toyo Observe GSi-6 HP
Tire AToyo

Observe GSi-6 HP

Winter

± 6

Tests 69 · 2 tests Owners 73 · 14 reviews

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

Yokohama iceGUARD iG52c
Tire BYokohama

iceGUARD iG52c

Premium Touring Winter tire

Tests – · none yet Owners – · 1 review (needs 5)

Category by category

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

  1. 75

    Dry

    No comparison
    –
    Why this score
    SourceObserve GSi-6 HPiceGUARD iG52c
    Professional tests (TWG score) · 1 / – tests73–
    Reviews found online77–

    Observe GSi-6 HP: 60% × 73 + 40% × 77.4 = 75

  2. 75

    Wet

    No comparison
    –
    Why this score
    SourceObserve GSi-6 HPiceGUARD iG52c
    Professional tests (TWG score) · 2 / – tests71–
    Reviews found online81–

    Observe GSi-6 HP: 60% × 71.2 + 40% × 81 = 75

  3. 66

    Snow

    No comparison
    –
    Why this score
    SourceObserve GSi-6 HPiceGUARD iG52c
    Professional tests (TWG score) · 2 / – tests60–
    Reviews found online75–

    Observe GSi-6 HP: 60% × 59.7 + 40% × 75.2 = 66

  4. 76

    Comfort

    No comparison
    –
    Why this score
    SourceObserve GSi-6 HPiceGUARD iG52c
    Professional tests (TWG score) · 1 / – tests78–
    Reviews found online75–

    Observe GSi-6 HP: 40% × 77.5 + 60% × 74.5 = 76

  5. 70

    Noise

    No comparison
    –
    Why this score
    SourceObserve GSi-6 HPiceGUARD iG52c
    Professional tests (TWG score) · 1 / – tests72–
    Reviews found online≈ 67 (est.)–

    Observe GSi-6 HP: 60% × 71.7 + 40% × 66.6 (est.) = 70

    No owner ratings of noise for Observe GSi-6 HP. 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.

  6. 61

    Treadwear

    No comparison
    –
    Why this score
    SourceObserve GSi-6 HPiceGUARD iG52c
    Professional tests (TWG score)≈ 63 (est.)–
    Reviews found online58–

    Observe GSi-6 HP: 60% × 63.3 (est.) + 40% × 58.2 = 61

    No road tests of treadwear for Observe GSi-6 HP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 76

    Handling (owners)

    No comparison
    –
    Why this score
    SourceObserve GSi-6 HPiceGUARD iG52c
    Reviews found online76–
  8. 66

    Efficiency

    No comparison
    –
    Why this score
    SourceObserve GSi-6 HPiceGUARD iG52c
    Professional tests (TWG score) · 1 / – tests66–
Scores at a glance
CategoryToyo Observe GSi-6 HPYokohama iceGUARD iG52c
Relative Score 71 –
Dry 75 –
Wet 75 –
Snow 66 –
Comfort 76 –
Noise 70 –
Treadwear 61 –
Handling (owners) 76 –
Efficiency 66 –

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
Important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost
Recomputed
Headline score
± 6

Observe GSi-6 HP

iceGUARD iG52c

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.

DisciplineCategoryObserve GSi-6 HPiceGUARD iG52cΔHead-to-head
Also published by the testers (not in the score)
Overall Ranking Overall #12/20 2025 Studded, Friction and European Winter Tyre Test #14/17 2020 Consumer Reports North America Winter Tyre Test – Different tests

Pros, cons & observations

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

Tire A 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

Tire B iceGUARD iG52c

Not enough owner reviews yet to extract themes.

Specs side by side

Attribute A · Toyo Observe GSi-6 HP B · Yokohama iceGUARD iG52c
CategoryWinterPremium Touring Winter tire
Vehicle type—Passenger Car / Crossover
Sizes available39—
Rim diameters16″ – 21″—
Tread depth11 - 12/32″11/32″
SidewallBlack Side WallBlackwall
Max pressure50 - 51 psi51 psi

Which one should you actually buy?

Toyo Observe GSi-6 HP

Yokohama iceGUARD iG52c

Only Toyo Observe GSi-6 HP has enough test and review data for a Relative Score, so there is no head-to-head winner yet.

Tire A · Toyo Observe GSi-6 HP
Check price on Amazon
Tire B · Yokohama iceGUARD iG52c
Check price on Amazon

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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.

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