Winter tire Updated September 2026

Toyo Observe EWS1 review

Relative score from road tests only

Road tests 74 · 2 tests

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Toyo Observe EWS1

How it did in road tests

No owner reviews yet, so every score here comes from instrumented road tests.

How scores work
Relative score
0–100. Blends road tests (60%) and owner reviews (40%) category by category, the same way on every TireWheelGuide page. With only one of the two, the missing half is estimated from it, so the score stays closer to average. It needs at least one road test or five owner reviews.
Road tests
0–100 per score, from published tests, newer tests counting more. Each result is compared with every other tire in the same test, so a win against a strong field counts for more. The average tested tire gets 70, the best 100; with only one or two tests a tire stays nearer 70. The discipline rows show % of the best tire in that test.
Owner reviews
0–100 from the owner reviews we found online, adjusted for how generously each site rates and scaled like the road tests: the average tested tire gets 70. With only a few reviews a tire stays near the average.

By road tests

74/100

Scaled across every tested tire: the average gets 70, the best 100.

Dry
81.5
Wet
84.1
Snow
50.2
Noise
50.4
Treadwear
76.1

Reviews from our readers

Drivers who have these tires on their car, in their own words. We check every review before it goes live.

No reviews from our readers yet

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2 published test appearances

Placement within each field. Open a test for the discipline-by-discipline result.

2027 AvD Winter Tire Test R17 · 225/45R17

12th of 12
Best: Wet · 4th Weakest: Snow · 15th
DisciplinePlacementField position
Snow15th of 12
Wet4th of 12
Dry5th of 12
Economy12th of 12

Source: AvD

2026 ADAC Winter tire Test - 225/50 R17 · 225/50 R17

12th of 16
Best: Dry Braking · 2nd Weakest: Snow Braking · 15th
DisciplinePlacementField position
Wet Braking10th of 16
Dry Braking2nd of 16
Snow Braking15th of 16
Snow Traction15th of 16
Ice Braking5th of 16
Straight Aqua3rd of 16
Curved Aquaplaning4th of 16
Noise14th of 16
Value5th of 16
Wear4th of 16
Fuel Consumption15th of 16
Abrasion5th of 16
Wet Braking - Concrete5th of 16

Source: ADAC

Other tires to consider

Ranked by our Relative score, weighed against how many reviews and tests stand behind it.

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