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Bridgestone Ecopia EP422 Plus vs Bridgestone Alenza AS Ultra — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Alenza AS Ultra is ahead, 68–51

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Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 47

    Dry

    Alenza AS Ultra +23
    70
    Why this score
    SourceEcopia EP422 PlusAlenza AS Ultra
    Reviews found online3571
  2. 53

    Wet

    Alenza AS Ultra +19
    72
    Why this score
    SourceEcopia EP422 PlusAlenza AS Ultra
    Reviews found online4773
  3. 54

    Snow

    Alenza AS Ultra +16
    70
    Why this score
    SourceEcopia EP422 PlusAlenza AS Ultra
    Reviews found online4371
  4. 55

    Comfort

    Alenza AS Ultra +14
    69
    Why this score
    SourceEcopia EP422 PlusAlenza AS Ultra
    Reviews found online4068
  5. 58

    Noise

    Alenza AS Ultra +6
    64
    Why this score
    SourceEcopia EP422 PlusAlenza AS Ultra
    Reviews found online4460
  6. 54

    Treadwear

    Alenza AS Ultra +8
    62
    Why this score
    SourceEcopia EP422 PlusAlenza AS Ultra
    Reviews found online4559
  7. 40

    Handling

    Alenza AS Ultra +29
    69
    Why this score
    SourceEcopia EP422 PlusAlenza AS Ultra
    Reviews found online4069
Scores at a glance
CategoryBridgestone Ecopia EP422 PlusBridgestone Alenza AS Ultra
Relative Score 51 68
Dry 47 70
Wet 53 72
Snow 54 70
Comfort 55 69
Noise 58 64
Treadwear 54 62
Handling 40 69

Higher is better. The Relative Score follows your weights below; category scores do not change.

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Recomputed
Headline score

Ecopia EP422 Plus

Alenza AS Ultra

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Ecopia EP422 Plus

Pros

  • Excellent fuel economy and low rolling resistance
  • Quiet and comfortable ride quality when new
  • Predictable dry and wet traction for conservative daily commuting

Cons

  • Significantly shorter tread life than advertised or expected
  • Develops loud whining, buzzing, and increased noise as the tread wears down
  • Stiff ride quality or harshness over rough pavement and cracks
All owner themes in the Ecopia EP422 Plus review

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
All owner themes in the Alenza AS Ultra review

Specs side by side

Attribute A · Bridgestone Ecopia EP422 Plus B · Bridgestone Alenza AS Ultra
CategorySummerAll Season
Vehicle typePassenger Car / CrossoverSUV and 4x4
Sizes available1546
Rim diameters15″ – 17″16″ – 22″
Tread depth11/32″10/32″
UTQG640 A A800 A A
Treadwear warranty70,000 mi80,000 mi
SidewallBlackwallBlackwall
Max pressure44 psi44 psi

Which one should you actually buy?

Bridgestone Ecopia EP422 Plus

Bridgestone Alenza AS Ultra

Winner: Bridgestone Alenza AS Ultra — better handling, dry and wet. It leads or ties in every category we score.

Pick tire B You enjoy sharp, responsive handling

Bridgestone Alenza AS Ultra scores 69 vs 40 on handling.

Pick tire B You want the most grip on dry roads

Bridgestone Alenza AS Ultra scores 70 vs 47 on dry.

Pick tire B Your priority is wet-weather safety

Bridgestone Alenza AS Ultra scores 72 vs 53 on wet.

Pick tire B You drive through snowy winters

Bridgestone Alenza AS Ultra scores 70 vs 54 on snow.

Tire A · Bridgestone Ecopia EP422 Plus
Check price on Amazon
Tire B · Bridgestone Alenza AS Ultra
Check price on Amazon

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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.

68

Leads

Alenza AS Ultra

Amazon