73
/ 100
Objective (60%)
66/100
1 professional test
User signal (40%)
84/100
20 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated September 2026
Bridgestone Blizzak WS90 vs Dunlop SP Winter Sport 4D — Compared (September 2026)
Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.
VS
Tire B
Dunlop
Dunlop SP Winter Sport 4D
88
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
86/100
38 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Dunlop SP Winter Sport 4D — better wet, handling and dry. It leads or ties in every category we score.
Read full
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Category breakdown
7 categories, side by side
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
Dry
Score (0–100)
SP Winter Sport 4D leads by 22
Why this score
| Source | Blizzak WS90 | SP Winter Sport 4D |
|---|---|---|
| Professional tests (TWG score) | 58 | – |
| Tire Rack owners | 88 | – |
| Tyre Reviews owners | 70 | 90 |
| SimpleTire owners | 88 | – |
Wet
Score (0–100)
SP Winter Sport 4D leads by 26
Why this score
| Source | Blizzak WS90 | SP Winter Sport 4D |
|---|---|---|
| Professional tests (TWG score) | 55 | – |
| Tire Rack owners | 91 | – |
| Tyre Reviews owners | 80 | 93 |
| SimpleTire owners | 86 | – |
Snow
Score (0–100)
Blizzak WS90 leads by 1
Why this score
| Source | Blizzak WS90 | SP Winter Sport 4D |
|---|---|---|
| Professional tests (TWG score) | 65 | – |
| Tire Rack owners | 93 | – |
| Tyre Reviews owners | 100 | 75 |
| SimpleTire owners | 91 | – |
Comfort
Score (0–100)
SP Winter Sport 4D leads by 9
Why this score
| Source | Blizzak WS90 | SP Winter Sport 4D |
|---|---|---|
| Professional tests (TWG score) | 86 | – |
| Tire Rack owners | 85 | – |
| Tyre Reviews owners | 64 | 93 |
| SimpleTire owners | 87 | – |
Noise
Score (0–100)
Why this score
| Source | Blizzak WS90 | SP Winter Sport 4D |
|---|---|---|
| SimpleTire owners | 77 | – |
Treadwear
Score (0–100)
SP Winter Sport 4D leads by 9
Why this score
| Source | Blizzak WS90 | SP Winter Sport 4D |
|---|---|---|
| Tire Rack owners | 84 | – |
| Tyre Reviews owners | 73 | 88 |
| SimpleTire owners | 82 | – |
Handling
Score (0–100)
SP Winter Sport 4D leads by 23
Why this score
| Source | Blizzak WS90 | SP Winter Sport 4D |
|---|---|---|
| Tyre Reviews owners | 65 | 88 |
Scores at a glance
| Category | Bridgestone Blizzak WS90 | Dunlop SP Winter Sport 4D |
|---|---|---|
| Relative Score | 73 | 88 |
| Dry | 68 | 90 |
| Wet | 67 | 93 |
| Snow | 76 | 75 |
| Comfort | 84 | 93 |
| Noise | 77 | – |
| Treadwear | 79 | 88 |
| Handling | 65 | 88 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
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Recomputed
Headline score
73
/ 100
Tire A
88
/ 100
Tire B
Only categories both tires have data for count toward the headline score.
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Bridgestone Blizzak WS90 is widely regarded as a top-tier winter tire, consistently praised for its exceptional traction and confidence-inspiring performance on ice, deep snow, and slush. While users occasionally note increased road noise or less precise handling on dry pavement compared to all-season alternatives, the consensus remains that it is a premier choice for severe winter climates.
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
- High level of driver confidence in extreme weather
Cons
- Increased road noise during highway driving
- Less responsive or 'softer' handling feel on dry pavement
- Potential for minor rubbing depending on vehicle fitment
- Perceived as less refined in dry conditions compared to the previous WS80 generation
Observations
- Users operating rear-wheel-drive vehicles without modern traction control reported high satisfaction with the tire's ability to maintain mobility.
- Drivers of front-wheel-drive sedans noted significant improvements in winter handling and the ability to avoid using four-wheel-drive modes in moderate conditions.
The Dunlop SP WinterSport 4D is widely regarded as a high-performance winter tire that excels in cold, wet, and slushy conditions while maintaining impressive comfort and low noise levels. While most users praise its stability and traction in snow and ice, a minority of drivers report a 'squirmy' handling sensation during high-speed cornering, likely due to the softer tread compound.
Pros
- Exceptional grip and stability in wet, slushy, and cold dry conditions.
- Remarkably low road noise, often quieter than summer tire counterparts.
- High level of ride comfort and refined road manners.
- Strong performance in deep snow and on icy inclines.
- Good tread longevity for a dedicated winter compound.
Cons
- Noticeable 'squirm' or lack of sharpness during high-speed cornering.
- Occasional reports of understeer in specific wet or icy conditions.
- Some users noted a 'hard' ride quality compared to previous iterations like the 3D.
- Potential for clearance issues if incorrect aspect ratios are selected for specific vehicle fitments.
Observations
- Users with wider tire setups noted that while traction is excellent, they may be slightly less effective in deep snow compared to narrower configurations.
- Drivers of heavier vehicles (e.g., Mercedes S-Class, E-Class) reported high satisfaction with comfort and grip, though they noted the 'squirm' sensation more prominently during aggressive maneuvers.
- Fitment caution: Owners of vehicles like the Mercedes W213 should ensure correct aspect ratios to avoid clearance issues with suspension components.
Specifications
Specs side by side
| Attribute | A · Bridgestone Blizzak WS90 | B · Dunlop SP Winter Sport 4D |
|---|---|---|
| Category | Winter Premium Touring tires | — |
| Vehicle type | Passenger Car / Crossover | — |
| Sizes available | 45 | — |
| Rim diameters | 15″ – 19″ | — |
| Tread depth | 11/32″ | — |
| Sidewall | Blackwall | — |
| Max pressure | 51 psi | — |
Final verdict
Which one should you actually buy?
73
/ 100
Bridgestone
88
/ 100
Dunlop
Winner: Dunlop SP Winter Sport 4D — better wet, handling and dry. It leads or ties in every category we score.
Pick tire B
Your priority is wet-weather safety
Dunlop SP Winter Sport 4D scores 93 vs 67 on wet.
Pick tire B
You enjoy sharp, responsive handling
Dunlop SP Winter Sport 4D scores 88 vs 65 on handling.
Pick tire B
You want the most grip on dry roads
Dunlop SP Winter Sport 4D scores 90 vs 68 on dry.
Pick tire B
You want the most comfortable ride
Dunlop SP Winter Sport 4D scores 93 vs 84 on comfort.
Tire A · Bridgestone Blizzak WS90
Tire B · Dunlop SP Winter Sport 4D
More comparisons
Also compared with
Bridgestone Blizzak WS90 also compared with
Dunlop SP Winter Sport 4D also compared with
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.
Community buzz from Reddit and forums is shown for context only — it never changes the score.