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Head-to-head Updated

Bridgestone Ecopia EP300 vs General G-MAX AS-05 — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 1 road tests and 17 + 805 owner reviews. How we score

Too close to call: Ecopia EP300 70, G-MAX AS-05 71.

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General G-MAX AS-05
Tire BGeneral

G-MAX AS-05

All Season

± 7

Tests – · 1 test Owners 68 · 805 reviews

Best test result: #2 of 19 in 2022 Consumer Reports Ultra High Performance All-Season Tires (tested tread life (miles))

“18 ST on freshly refinished snowflakes and general g-max as-05 tires. Tire rack mobile install is awesome.”

Category by category

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

  1. 69

    Dry

    G-MAX AS-05 +1
    70
    Why this score
    SourceEcopia EP300G-MAX AS-05
    Professional tests (TWG score)≈ 69 (est.)≈ 70 (est.)
    Reviews found online7072

    Ecopia EP300: 60% × 69 (est.) + 40% × 70.2 = 69

    G-MAX AS-05: 60% × 69.5 (est.) + 40% × 71.5 = 70

    No road tests of dry for Ecopia EP300. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

    No road tests of dry for G-MAX AS-05. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 72

    Wet

    Ecopia EP300 +1
    71
    Why this score
    SourceEcopia EP300G-MAX AS-05
    Professional tests (TWG score)≈ 72 (est.)≈ 71 (est.)
    Reviews found online7271

    Ecopia EP300: 60% × 71.5 (est.) + 40% × 72.1 = 72

    G-MAX AS-05: 60% × 70.8 (est.) + 40% × 70.8 = 71

    No road tests of wet for Ecopia EP300. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for G-MAX AS-05. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. –

    Snow

    No comparison
    59
    Why this score
    SourceEcopia EP300G-MAX AS-05
    Professional tests (TWG score)–≈ 63 (est.)
    Reviews found online–51

    G-MAX AS-05: 60% × 63.5 (est.) + 40% × 51.3 = 59

    No road tests of snow for G-MAX AS-05. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 68

    Comfort

    Ecopia EP300 +1
    67
    Why this score
    SourceEcopia EP300G-MAX AS-05
    Professional tests (TWG score)≈ 69 (est.)≈ 69 (est.)
    Reviews found online6866

    Ecopia EP300: 40% × 68.9 (est.) + 60% × 67.6 = 68

    G-MAX AS-05: 40% × 68.6 (est.) + 60% × 66.4 = 67

    No road tests of comfort for Ecopia EP300 or G-MAX AS-05. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. –

    Noise

    No comparison
    67
    Why this score
    SourceEcopia EP300G-MAX AS-05
    Professional tests (TWG score)–≈ 67 (est.)
    Reviews found online–68

    G-MAX AS-05: 60% × 66.6 (est.) + 40% × 68.2 = 67

    No road tests of noise for G-MAX AS-05. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 70

    Treadwear

    G-MAX AS-05 +5
    75
    Why this score
    SourceEcopia EP300G-MAX AS-05
    Professional tests (TWG score) · – / 1 tests≈ 68 (est.)77
    Reviews found online7373

    Ecopia EP300: 60% × 68.4 (est.) + 40% × 72.7 = 70

    G-MAX AS-05: 60% × 77.1 + 40% × 72.5 = 75

    No road tests of treadwear for Ecopia EP300. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 72

    Handling (owners)

    Ecopia EP300 +2
    70
    Why this score
    SourceEcopia EP300G-MAX AS-05
    Reviews found online7270
Scores at a glance
CategoryBridgestone Ecopia EP300General G-MAX AS-05
Relative Score 70 71
Dry 69 70
Wet 72 71
Snow – 59
Comfort 68 67
Noise – 67
Treadwear 70 75
Handling (owners) 72 70

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

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
± 8

Ecopia EP300

± 7

G-MAX AS-05

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 Ecopia EP300

Pros

  • Exceptional tread life and durability
  • High levels of ride comfort and low road noise
  • Noticeable improvements in fuel economy

Cons

  • Wet weather grip can diminish significantly as the tire wears
  • Soft sidewalls can result in a 'floaty' or bouncy driving feel
  • Not intended for performance-oriented driving or aggressive cornering
All owner themes in the Ecopia EP300 review

Tire B G-MAX AS-05

Pros

  • Exceptional value and price point compared to premium brands
  • Low road noise and quiet operation
  • Sharp steering response and sporty handling

Cons

  • Slightly mushy or delayed response at the absolute cornering limit for aggressive drivers
  • Mediocre performance in deep snow
  • Occasional reports of highway tramlining or a firmer ride due to stiff sidewalls
All owner themes in the G-MAX AS-05 review

What real owners are saying

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

Tire A

Bridgestone Ecopia EP300

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

Tire B

General G-MAX AS-05

Positive

Community members widely regard the General G-Max AS-05 as an outstanding value for an ultra-high performance all-season tire, often praising its responsive steering, strong dry handling, and wet grip as a cheaper alternative to Continental and Michelin. However, opinions on road noise are polarized, ranging from quiet to noticeably loud, and snow/winter performance is frequently cited as mediocre or limited to light conditions.

corvetteforum.com

“I bought these for my daily driven 2016 Ford Interceptor AWD. Fantastic all season. Rain snow ice very confident (though the AWD Doesnt hurt). In the dry they are okay. I can still spin the tires if I floor it from a stop. They are quiet and smooth riding. The Taurus has fairly tall sidewalls, the have some noticeable give and delay cornering. I would not put them on my C5 if I did not need an all season. Also, they look okay on the Taurus but would be out of place on a vett. They seem less durable than other brands as I have had 3 flat repairs and 2 tire replacements. I dont think they would provide the traction a c5 needs. I really like them on my DD. 30k miles regular rotations and they look perfect.”
subaruoutback.org ·2020-02-25

“I've had my General G-MAX AS05s for awhile and they handle awesomely! Got them for the 245/55 18" that I run on my Motegis. For light to medium snow they are adequate as long as you take it easy. Thinking of going with the Atimax 43s for better snow performance, though. Sure they are T-rated but who drives their Outback over 118mph??”
r/Corvette ·21 upvotes ·2021-07-14

“Thanks to the advice of this group got four new tires General G max AS05. Huge improvement so far”
Top themes
#value and pricing#wet traction performance#road noise levels#light snow capability#steering response handling#Continental brand relationship#tread wear longevity

Based on 88 community posts

Specs side by side

Attribute A · Bridgestone Ecopia EP300 B · General G-MAX AS-05
CategorySummerAll Season
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available291
Rim diameters15″ – 18″19″
Tread depth—10/32″
UTQG—500 A - AA A
Treadwear warranty—50,000 mi
Sidewall—Black Side Wall
Max pressure—50 - 51 psi

Which one should you actually buy?

Bridgestone Ecopia EP300

General G-MAX AS-05

Too close to call: Bridgestone Ecopia EP300 and General G-MAX AS-05 are within 2 points overall. General G-MAX AS-05 is stronger on treadwear. Bridgestone Ecopia EP300 rests on little evidence so far (0 tests, 17 reviews), so read this result as provisional.

Pick tire B You want the longest tread life

General G-MAX AS-05 scores 75 vs 70 on treadwear.

Tire A · Bridgestone Ecopia EP300
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Tire B · General G-MAX AS-05
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Ecopia EP300 or G-MAX AS-05?

Which is better in the wet, Ecopia EP300 or G-MAX AS-05?

Neither, by our numbers: 72 vs 71 on the wet score, within 3 points.

Which grips better on dry roads, Ecopia EP300 or G-MAX AS-05?

Neither, by our numbers: 69 vs 70 on the dry score, within 3 points.

Which is more comfortable, Ecopia EP300 or G-MAX AS-05?

Neither, by our numbers: 68 vs 67 on the comfort score, within 3 points.

Which lasts longer, Ecopia EP300 or G-MAX AS-05?

General G-MAX AS-05, 75 vs 70 on our treadwear score.

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.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology