Tests – · none yet Owners 67 · 6 reviews
Head-to-head
Updated
Cooper WeatherMaster SA2 vs Bridgestone Alenza AS Ultra — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Alenza AS Ultra leads, 68–67 Narrow edge
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Tests – · none yet Owners 68 · 13 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
66
Dry
Alenza AS Ultra +470Why this score
Source WeatherMaster SA2 Alenza AS Ultra Reviews found online 66 72 -
70
Wet
Alenza AS Ultra +272Why this score
Source WeatherMaster SA2 Alenza AS Ultra Reviews found online 70 73 -
–
Snow
No comparison70Why this score
Source WeatherMaster SA2 Alenza AS Ultra Reviews found online – 71 -
67
Comfort
Alenza AS Ultra +269Why this score
Source WeatherMaster SA2 Alenza AS Ultra Reviews found online 64 68 -
–
Noise
No comparison64Why this score
Source WeatherMaster SA2 Alenza AS Ultra Reviews found online – 61 -
66
Treadwear
WeatherMaster SA2 +462Why this score
Source WeatherMaster SA2 Alenza AS Ultra Reviews found online 67 59 -
66
Handling
Alenza AS Ultra +369Why this score
Source WeatherMaster SA2 Alenza AS Ultra Reviews found online 66 69
Scores at a glance
| Category | Cooper WeatherMaster SA2 | Bridgestone Alenza AS Ultra |
|---|---|---|
| Relative Score | 67 | 68 |
| Dry | 66 | 70 |
| Wet | 70 | 72 |
| Snow | – | 70 |
| Comfort | 67 | 69 |
| Noise | – | 64 |
| Treadwear | 66 | 62 |
| Handling | 66 | 69 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
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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Neutral
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Neither tire has a score here yet, so this weight changes nothing.
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Neutral
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Recomputed
Headline score
67
/ 100
WeatherMaster SA2
68
/ 100
Alenza AS Ultra
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A WeatherMaster SA2
Pros
- Exceptional traction and grip in deep snow and ice
- High value-for-money proposition compared to premium competitors
- Impressive tread longevity over extended mileage
Cons
- Increased road noise reported by some users
- Performance may feel less refined than top-tier premium winter tires
Tire B Alenza AS Ultra
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
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
Specs side by side
| Attribute | A · Cooper WeatherMaster SA2 | B · Bridgestone Alenza AS Ultra |
|---|---|---|
| Category | Touring Winter tire | All Season |
| Vehicle type | Passenger Car / Crossover | SUV and 4x4 |
| 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 |
Which one should you actually buy?
67
/ 100
Cooper WeatherMaster SA2
68
/ 100
Bridgestone Alenza AS Ultra
Too close to call: Cooper WeatherMaster SA2 and Bridgestone Alenza AS Ultra are within 2 points overall. Cooper WeatherMaster SA2 is stronger on treadwear. Bridgestone Alenza AS Ultra is stronger on dry and handling.
Pick tire A
You want the longest tread life
Cooper WeatherMaster SA2 scores 66 vs 62 on treadwear.
Pick tire B
You want the most grip on dry roads
Bridgestone Alenza AS Ultra scores 70 vs 66 on dry.
Pick tire B
You enjoy sharp, responsive handling
Bridgestone Alenza AS Ultra scores 69 vs 66 on handling.
Tire A · Cooper WeatherMaster SA2
Tire B · Bridgestone Alenza AS Ultra
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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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.