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Bridgestone Ecopia EP150 vs Michelin Primacy 3 — Compared

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

Primacy 3 is ahead, 70–58

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Tire ABridgestone

Ecopia EP150

Summer

Tests – · none yet Owners 52 · 75 reviews

Best test result: #4 of 16 in 2014 ADAC 175/65 R14 Summer Tyre Test (overall ranking)

Tire BMichelin

Primacy 3

Summer

Tests 73 · 2 tests Owners 67 · 195 reviews

Best test result: #9 of 11 in 2018 Ace 235/45 R18 Summer Tyre Test (overall ranking)

“By far the biggest determinant in road noise will be the road surface, as you found, and no tire will overcome that basic fact. That is so obvious in my area where there are new sections of highway interspersed with old sections. Having said that, I'm running the older Michelin Primacy 3 ST tires on 17 inch wheels on my 2021 ES300h and they are great, compared to the Turanza I was running on 19 inch wheels on the same car. The Michelin Primacy Tour A/S should be even better in this regard. Not sure, but perhaps the higher profile of the 17 inch tires (215/55R17 vs 235/40R19) also helps reduce road noise.”

Category by category

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

  1. 57

    Dry

    Primacy 3 +15
    72
    Why this score
    SourceEcopia EP150Primacy 3
    Professional tests (TWG score)–74
    Reviews found online5169
  2. 61

    Wet

    Primacy 3 +11
    72
    Why this score
    SourceEcopia EP150Primacy 3
    Professional tests (TWG score)–72
    Reviews found online5871
  3. 50

    Snow

    No comparison
    –
    Why this score
    SourceEcopia EP150Primacy 3
    Reviews found online36–
  4. 61

    Comfort

    Primacy 3 +8
    69
    Why this score
    SourceEcopia EP150Primacy 3
    Reviews found online5468
  5. 61

    Noise

    No comparison
    –
    Why this score
    SourceEcopia EP150Primacy 3
    Reviews found online54–
  6. 58

    Treadwear

    Primacy 3 +9
    67
    Why this score
    SourceEcopia EP150Primacy 3
    Professional tests (TWG score)–72
    Reviews found online5259
  7. 55

    Handling

    Primacy 3 +13
    68
    Why this score
    SourceEcopia EP150Primacy 3
    Reviews found online5568
Scores at a glance
CategoryBridgestone Ecopia EP150Michelin Primacy 3
Relative Score 58 70
Dry 57 72
Wet 61 72
Snow 50 –
Comfort 61 69
Noise 61 –
Treadwear 58 67
Handling 55 68

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.

Less important
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Recomputed
Headline score

Ecopia EP150

Primacy 3

Only categories both tires have data for count toward the headline score.

The professional test results behind the scores

Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.

DisciplineCategoryEcopia EP150Primacy 3ΔBoth?
Overall Ranking Overall 25% #4/16 · 2014 ADAC 175/65 R14 Summer Tyre Test 11% #9/11 · 2018 Ace 235/45 R18 Summer Tyre Test +13.9 Different tests

Pros, cons & observations

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

Tire A Ecopia EP150

Pros

  • High level of ride comfort and low-speed smoothness
  • Generally durable construction capable of handling potholes
  • Satisfactory dry-road handling for casual, daily driving

Cons

  • Frequently cited as dangerous or unpredictable in wet conditions
  • Noticeable increase in road noise as the tire ages
  • Inconsistent tread wear, with some users reporting premature failure
All owner themes in the Ecopia EP150 review

Tire B Primacy 3

Pros

  • Exceptional ride comfort and low noise levels
  • Strong dry grip and confident handling
  • Smooth, refined high-speed stability and cruising capability

Cons

  • Higher than average purchase price
  • Faster-than-expected tread wear reported by many users
  • Mixed feedback on wet weather performance, with some noting a lack of grip in standing water or snow
All owner themes in the Primacy 3 review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Bridgestone Ecopia EP150

We haven't collected enough community discussion about this tire yet.

Tire B

Michelin Primacy 3

Positive

Community discussions regarding the Michelin Primacy 3 generally view it as a reliable, cost-effective, and comfortable touring tire option compared to alternatives like Bridgestone Ecopias or Turanzas. Users frequently compare its efficiency and comfort attributes against sportier options like the Michelin Pilot Sport 4 or Goodyear Eagle F1, noting its balanced performance.

r/BMWi3 ·7 upvotes ·2022-04-22

“So I have decided there is no way I am paying for the Bridgestone Ecopias at over £200 a tyre, and as such, I have come across the Michelin Primacy 3 on Costco, which I can get fitted for approx £93 a tyre (I only need two on the rear) They seem to have good reviews. My actual tyre size for my i3S should be 195/50 R20, but getting 195/55 R20 instead should only add up to another inch or so in height, so I'm reckoning I should be okay. What are people's thoughts?”
Top themes
#Cost and value#Ride comfort#Fuel efficiency#Road noise reduction#Comparison with sport tires#Size availability

Based on 7 community posts

Specs side by side

Attribute A · Bridgestone Ecopia EP150 B · Michelin Primacy 3
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available2442
Rim diameters13″ – 17″15″ – 20″
UTQG200 B B—
SidewallBlackwall—

Which one should you actually buy?

Bridgestone Ecopia EP150

Michelin Primacy 3

Winner: Michelin Primacy 3 — better dry, handling and wet. It leads or ties in every category we score.

Pick tire B You want the most grip on dry roads

Michelin Primacy 3 scores 72 vs 57 on dry.

Pick tire B You enjoy sharp, responsive handling

Michelin Primacy 3 scores 68 vs 55 on handling.

Pick tire B Your priority is wet-weather safety

Michelin Primacy 3 scores 72 vs 61 on wet.

Pick tire B You want the longest tread life

Michelin Primacy 3 scores 67 vs 58 on treadwear.

Tire A · Bridgestone Ecopia EP150
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Tire B · Michelin Primacy 3
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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.

70

Leads

Primacy 3

Amazon