78
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
79/100
12 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated September 2026
Bridgestone Alenza AS Ultra vs Cooper WeatherMaster SA2+ — 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
80
/ 100
Objective (60%)
71/100
4 professional tests
User signal (40%)
85/100
36 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Cooper WeatherMaster SA2+ — better treadwear, handling and comfort. Pick the Bridgestone Alenza AS Ultra if snow, dry and noise matter most to you.
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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)
Alenza AS Ultra leads by 9
Why this score
| Source | Alenza AS Ultra | WeatherMaster SA2+ |
|---|---|---|
| Professional tests (TWG score) | – | 73 |
| Tire Rack owners | 91 | – |
| Tyre Reviews owners | 82 | 74 |
Wet
Score (0–100)
Alenza AS Ultra leads by 2
Why this score
| Source | Alenza AS Ultra | WeatherMaster SA2+ |
|---|---|---|
| Professional tests (TWG score) | – | 75 |
| Tire Rack owners | 88 | – |
| Tyre Reviews owners | 76 | 80 |
Snow
Score (0–100)
Alenza AS Ultra leads by 15
Why this score
| Source | Alenza AS Ultra | WeatherMaster SA2+ |
|---|---|---|
| Professional tests (TWG score) | – | 55 |
| Tire Rack owners | 78 | – |
| Tyre Reviews owners | 68 | 83 |
Comfort
Score (0–100)
WeatherMaster SA2+ leads by 3
Why this score
| Source | Alenza AS Ultra | WeatherMaster SA2+ |
|---|---|---|
| Tire Rack owners | 85 | – |
| Tyre Reviews owners | 74 | 82 |
Noise
Score (0–100)
Alenza AS Ultra leads by 9
Why this score
| Source | Alenza AS Ultra | WeatherMaster SA2+ |
|---|---|---|
| Professional tests (TWG score) | – | 63 |
Treadwear
Score (0–100)
WeatherMaster SA2+ leads by 20
Why this score
| Source | Alenza AS Ultra | WeatherMaster SA2+ |
|---|---|---|
| Tire Rack owners | 78 | – |
| Tyre Reviews owners | 55 | 80 |
Handling
Score (0–100)
WeatherMaster SA2+ leads by 9
Why this score
| Source | Alenza AS Ultra | WeatherMaster SA2+ |
|---|---|---|
| Tyre Reviews owners | 74 | 56 |
Scores at a glance
| Category | Bridgestone Alenza AS Ultra | Cooper WeatherMaster SA2+ |
|---|---|---|
| Relative Score | 78 | 80 |
| Dry | 88 | 79 |
| Wet | 83 | 81 |
| Snow | 81 | 66 |
| Comfort | 83 | 86 |
| Noise | 80 | 71 |
| Treadwear | 66 | 86 |
| Handling | 74 | 83 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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Recomputed
Headline score
78
/ 100
Tire A
80
/ 100
Tire B
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Bridgestone Alenza AS Ultra presents a polarized user experience, characterized by a significant divide between those praising its wet and dry handling performance and those disappointed by its longevity and noise levels. While some users report exceptional tread life and reliable all-season traction, others cite premature wear and intrusive road noise, suggesting that performance may vary significantly based on vehicle application and driving conditions.
Pros
- Strong traction on both wet and dry road surfaces
- Improved ride comfort and handling compared to some factory-installed alternatives
- Capable performance in varied weather conditions for some users
- High durability reported by long-term users
Cons
- Reports of premature tread wear and short service life
- Noticeable road noise compared to other premium tires
- Inconsistent performance in severe winter conditions, particularly on ice and deep snow
- Potential for reduced fuel economy
Observations
- Users on heavy SUVs and trucks report mixed results, with some achieving high mileage while others experience rapid tread degradation.
- Drivers transitioning from OEM tires, such as the Bridgestone Ecopia, have noted a distinct increase in cabin noise levels.
- Regular maintenance, specifically rotations every 5,000 miles, is highlighted as critical for maximizing the lifespan of this tire.
The Cooper Weather Master SA2+ is widely regarded as a high-value winter tire that excels in snow and slush, offering impressive traction at a competitive price point. While most users praise its winter capabilities and comfort, some report concerns regarding handling feedback and noise levels, particularly after extended use or rotation.
Pros
- Excellent traction in deep snow and slush
- High value-for-money proposition compared to premium brands
- Comfortable and smooth ride quality
- Reliable performance on icy surfaces, especially when studded
Cons
- Increased road noise reported by some users
- Vague steering feedback and handling characteristics
- Potential for vibration or balancing issues
- Inconsistent performance in extreme ice conditions compared to dedicated Nordic-compound tires
Observations
- Users noted that the tire's performance and construction can vary significantly based on manufacturing origin, with 13-16 inch sizes and 17+ inch sizes utilizing different compounds and designs.
- Drivers of performance-oriented vehicles (e.g., Mustang) reported that switching to a narrower tire profile significantly improved winter safety and confidence.
Specifications
Specs side by side
| Attribute | A · Bridgestone Alenza AS Ultra | B · Cooper WeatherMaster SA2+ |
|---|---|---|
| Category | All Season Premium Touring tires | Touring Winter tire |
| Vehicle type | — | Passenger Car / Crossover |
| Sizes available | 46 | — |
| Rim diameters | 16″ – 22″ | — |
| Tread depth | 10/32″ | — |
| UTQG | 800 A A | — |
| Treadwear warranty | 80,000 mi | — |
| Sidewall | Blackwall | — |
| Max pressure | 44 psi | — |
Final verdict
Which one should you actually buy?
78
/ 100
Bridgestone
80
/ 100
Cooper
Winner: Cooper WeatherMaster SA2+ — better treadwear, handling and comfort. Pick the Bridgestone Alenza AS Ultra if snow, dry and noise matter most to you.
Pick tire B
You want the longest tread life
Cooper WeatherMaster SA2+ scores 86 vs 66 on treadwear.
Pick tire A
You drive through snowy winters
Bridgestone Alenza AS Ultra scores 81 vs 66 on snow.
Pick tire A
You want the most grip on dry roads
Bridgestone Alenza AS Ultra scores 88 vs 79 on dry.
Pick tire A
You want a quieter cabin
Bridgestone Alenza AS Ultra scores 80 vs 71 on noise.
Tire A · Bridgestone Alenza AS Ultra
Tire B · Cooper WeatherMaster SA2+
More comparisons
Also compared with
Bridgestone Alenza AS Ultra also compared with
Cooper WeatherMaster SA2+ 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.