Tests – · 1 test Owners 65 · 24 reviews
Firestone WeatherGrip vs Bridgestone Blizzak WS90 — 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 1 + 1 road tests and 24 + 21 owner reviews. How we score
Too close to call: WeatherGrip 66, Blizzak WS90 67.
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Tests 73 · 1 test Owners 64 · 21 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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65
Dry
Blizzak WS90 +873Why this score
Source WeatherGrip Blizzak WS90 Professional tests (TWG score) · – / 1 tests ≈ 66 (est.) 85 Reviews found online 64 55 WeatherGrip: 60% × 66.2 (est.) + 40% × 63.5 = 65
Blizzak WS90: 60% × 85 + 40% × 55.1 = 73
No road tests of dry for WeatherGrip. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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70
Wet
WeatherGrip +367Why this score
Source WeatherGrip Blizzak WS90 Professional tests (TWG score) · – / 1 tests ≈ 70 (est.) 65 Reviews found online 70 69 WeatherGrip: 60% × 70.4 (est.) + 40% × 70.1 = 70
Blizzak WS90: 60% × 65.3 + 40% × 68.9 = 67
No road tests of wet for WeatherGrip. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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75
Snow
WeatherGrip +273Why this score
Source WeatherGrip Blizzak WS90 Professional tests (TWG score) · – / 1 tests ≈ 73 (est.) 69 Reviews found online 77 79 WeatherGrip: 60% × 73.1 (est.) + 40% × 77 = 75
Blizzak WS90: 60% × 69.1 + 40% × 79.1 = 73
No road tests of snow for WeatherGrip. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
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65
Comfort
WeatherGrip +461Why this score
Source WeatherGrip Blizzak WS90 Professional tests (TWG score) · – / 1 tests ≈ 68 (est.) 68 Reviews found online 62 56 WeatherGrip: 40% × 67.9 (est.) + 60% × 62.4 = 65
Blizzak WS90: 40% × 68.5 + 60% × 56 = 61
No road tests of comfort for WeatherGrip. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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68
Noise
WeatherGrip +563Why this score
Source WeatherGrip Blizzak WS90 Professional tests (TWG score) · – / 1 tests ≈ 67 (est.) 70 Reviews found online 69 52 WeatherGrip: 60% × 66.6 (est.) + 40% × 69.1 = 68
Blizzak WS90: 60% × 70.5 + 40% × 51.6 = 63
No road tests of noise for WeatherGrip. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
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55
Treadwear
Blizzak WS90 +661Why this score
Source WeatherGrip Blizzak WS90 Professional tests (TWG score) · 1 / – tests 55 ≈ 63 (est.) Reviews found online 54 58 WeatherGrip: 60% × 55.2 + 40% × 53.7 = 55
Blizzak WS90: 60% × 63.1 (est.) + 40% × 57.6 = 61
No road tests of treadwear for Blizzak WS90. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
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62
Handling (owners)
Level62Why this score
Source WeatherGrip Blizzak WS90 Reviews found online 62 62
Scores at a glance
| Category | Firestone WeatherGrip | Bridgestone Blizzak WS90 |
|---|---|---|
| Relative Score | 66 | 67 |
| Dry | 65 | 73 |
| Wet | 70 | 67 |
| Snow | 75 | 73 |
| Comfort | 65 | 61 |
| Noise | 68 | 63 |
| Treadwear | 55 | 61 |
| Handling (owners) | 62 | 62 |
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.
WeatherGrip
Blizzak WS90
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.
| Discipline | Category | WeatherGrip | Blizzak WS90 | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #8/8 2022 Consumer Reports All-Season Tires | #8/10 2026 Tire Rack All-Weather vs Winter Tyre Test | – | Different tests |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A WeatherGrip
Pros
- Outstanding snow and winter weather traction
- Confident wet weather and rain grip
- Smooth and comfortable ride quality
Cons
- Faster tread wear due to the softer rubber compound
- Noticeable drop in fuel economy (MPG)
- Subpar dry pavement performance compared to dedicated summer or standard all-season tires
Tire B Blizzak WS90
Pros
- Outstanding grip and acceleration on ice and hard-packed snow
- Excellent braking performance in hazardous winter conditions
- Strong capability in slush and deep snow
Cons
- Increased road noise during highway driving
- Less responsive or 'softer' handling feel on dry pavement
- Potential for minor rubbing depending on vehicle fitment
Specs side by side
| Attribute | A · Firestone WeatherGrip | B · Bridgestone Blizzak WS90 |
|---|---|---|
| Category | All Weather | Winter |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 49 | 45 |
| Rim diameters | 15″ – 19″ | 15″ – 19″ |
| Tread depth | 10/32″ | 11/32″ |
| UTQG | 640 A A | — |
| Treadwear warranty | 65,000 mi | — |
| Sidewall | Blackwall | Blackwall |
| Max pressure | 44 psi | 44 psi |
| Sizes in common | 33 | 33 |
Which one should you actually buy?
Firestone WeatherGrip
Bridgestone Blizzak WS90
Too close to call: Firestone WeatherGrip and Bridgestone Blizzak WS90 are within 2 points overall. Firestone WeatherGrip is stronger on noise, comfort and wet. Bridgestone Blizzak WS90 is stronger on dry and treadwear.
Bridgestone Blizzak WS90 scores 73 vs 65 on dry.
Bridgestone Blizzak WS90 scores 61 vs 55 on treadwear.
Firestone WeatherGrip scores 68 vs 63 on noise.
Firestone WeatherGrip scores 65 vs 61 on comfort.
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WeatherGrip or Blizzak WS90?
Which is better in the wet, WeatherGrip or Blizzak WS90?
Firestone WeatherGrip, 70 vs 67 on our wet score.
Which grips better on dry roads, WeatherGrip or Blizzak WS90?
Bridgestone Blizzak WS90, 73 vs 65 on our dry score.
Which is better in snow, WeatherGrip or Blizzak WS90?
Neither, by our numbers: 75 vs 73 on the snow score, within 3 points.
Which is quieter, WeatherGrip or Blizzak WS90?
Firestone WeatherGrip, 68 vs 63 on our noise score.
Which is more comfortable, WeatherGrip or Blizzak WS90?
Firestone WeatherGrip, 65 vs 61 on our comfort score.
Which lasts longer, WeatherGrip or Blizzak WS90?
Bridgestone Blizzak WS90, 61 vs 55 on our treadwear score.
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