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Head-to-head Updated

Cooper Zeon LTZ vs Kumho Ecsta PS91 — 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 + 6 road tests and 11 + 485 owner reviews. How we score

Zeon LTZ is ahead, 62–57

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Cooper Zeon LTZ
Tire ACooper

Zeon LTZ

All Season All Terrain and Off Road tires

± 8Provisional

Tests – · none yet Owners 58 · 11 reviews

Kumho Ecsta PS91
Tire BKumho

Ecsta PS91

Summer

± 5

Tests 77 · 6 tests Owners 42 · 485 reviews

Best test result: #1 of 11 in 2023 AUTO Straßenverkehr 2023 Summer Tire Test R18 (exterior noise)

“Putting some Kumho Ecsta PS91s on. Curious how they’ll do since my go to Falken rt660 doesn’t come in the oem 18” sizes”

Category by category

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

  1. 62

    Dry

    Ecsta PS91 +4
    66
    Why this score
    SourceZeon LTZEcsta PS91
    Professional tests (TWG score) · – / 6 tests≈ 64 (est.)77
    Reviews found online5851

    Zeon LTZ: 60% × 63.9 (est.) + 40% × 58 = 62

    Ecsta PS91: 60% × 76.7 + 40% × 50.9 = 66

    No road tests of dry for Zeon LTZ. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 66

    Wet

    Ecsta PS91 +2
    68
    Why this score
    SourceZeon LTZEcsta PS91
    Professional tests (TWG score) · – / 6 tests≈ 67 (est.)79
    Reviews found online6452

    Zeon LTZ: 60% × 67.1 (est.) + 40% × 64.1 = 66

    Ecsta PS91: 60% × 78.7 + 40% × 51.5 = 68

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

  3. 47

    Snow

    Zeon LTZ +9
    38
    Why this score
    SourceZeon LTZEcsta PS91
    Professional tests (TWG score)≈ 58 (est.)≈ 53 (est.)
    Reviews found online3015

    Zeon LTZ: 60% × 57.6 (est.) + 40% × 29.9 = 47

    Ecsta PS91: 60% × 52.9 (est.) + 40% × 15 = 38

    No road tests of snow for Zeon LTZ. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

    No road tests of snow for Ecsta PS91. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 60

    Comfort

    Zeon LTZ +6
    54
    Why this score
    SourceZeon LTZEcsta PS91
    Professional tests (TWG score)≈ 66 (est.)≈ 64 (est.)
    Reviews found online5648

    Zeon LTZ: 40% × 66.2 (est.) + 60% × 56.4 = 60

    Ecsta PS91: 40% × 64.4 (est.) + 60% × 47.7 = 54

    No road tests of comfort for Zeon LTZ. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

    No road tests of comfort for Ecsta PS91. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. 64

    Noise

    Zeon LTZ +2
    62
    Why this score
    SourceZeon LTZEcsta PS91
    Professional tests (TWG score) · – / 3 tests≈ 66 (est.)70
    Reviews found online6050

    Zeon LTZ: 60% × 66.4 (est.) + 40% × 59.6 = 64

    Ecsta PS91: 60% × 70.2 + 40% × 49.6 = 62

    No road tests of noise for Zeon LTZ. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 66

    Treadwear

    Zeon LTZ +22
    44
    Why this score
    SourceZeon LTZEcsta PS91
    Professional tests (TWG score)≈ 66 (est.)≈ 53 (est.)
    Reviews found online6530

    Zeon LTZ: 60% × 66 (est.) + 40% × 65.1 = 66

    Ecsta PS91: 60% × 53.4 (est.) + 40% × 30.2 = 44

    No road tests of treadwear for Zeon LTZ. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

    No road tests of treadwear for Ecsta PS91. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 64

    Handling (owners)

    Zeon LTZ +11
    53
    Why this score
    SourceZeon LTZEcsta PS91
    Reviews found online6453
  8. –

    Efficiency

    No comparison
    47
    Why this score
    SourceZeon LTZEcsta PS91
    Professional tests (TWG score) · – / 3 tests–47
Scores at a glance
CategoryCooper Zeon LTZKumho Ecsta PS91
Relative Score 62 57
Dry 62 66
Wet 66 68
Snow 47 38
Comfort 60 54
Noise 64 62
Treadwear 66 44
Handling (owners) 64 53
Efficiency – 47

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
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost

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

Recomputed
Headline score
± 8

Zeon LTZ

± 5

Ecsta PS91

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 Zeon LTZ

Pros

  • Comfortable and smooth highway ride quality
  • Aggressive, attractive aesthetic that suits sport utility vehicles
  • Good longevity and treadwear, with multiple users reporting up to 50,000 miles of use

Cons

  • Poor traction in snow, ice, and deep sand
  • Limited availability and sourcing difficulties
  • Occasional reports of premature failure or punctures from dissatisfied users
All owner themes in the Zeon LTZ review

Tire B Ecsta PS91

Pros

  • Exceptional dry and wet grip providing high confidence during spirited driving
  • Significantly more affordable than premium flagship alternatives while offering comparable performance
  • Stiff sidewalls enhance steering response, cornering stability, and feedback

Cons

  • Accelerated tread wear and shorter lifespan, particularly with aggressive driving or on heavier vehicles
  • Stiff sidewalls result in a firmer, less comfortable ride that transmits road imperfections
  • Tendency to tramline or follow road grooves on straight highways
All owner themes in the Ecsta PS91 review

What real owners are saying

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

Tire A

Cooper Zeon LTZ

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

Tire B

Kumho Ecsta PS91

Mixed

The community views the Kumho Ecsta PS91 as an attractive, budget-friendly max performance summer tire that offers decent street traction, low noise, and a tread pattern resembling higher-end options like Michelin. However, opinions are split; while some drivers praise them as a great value alternative for daily driving and light spirited use, enthusiasts note limitations regarding rapid wear, subpar track endurance, and inferior grip compared to top-tier performance tires.

r/Porsche ·11 upvotes ·2022-02-12

“Putting some Kumho Ecsta PS91s on. Curious how they’ll do since my go to Falken rt660 doesn’t come in the oem 18” sizes”
r/E90 ·180 upvotes ·2025-09-17

“New meaty tires set up installed, now I can order spacers Went up tire sizes and they definitely fill the gap a bit. First time running sticky kumhos on anytime so excited to see how they turn out.Specs are Kumho Ecsta Ps91 235/40/18 up front and 265/40/18 in the rear. Read more”
r/Autocross ·1 upvote ·2025-09-30

“You will get smoked if you go with the PS91. They also do not hold well under abuse. I feel that the RE-71RS would be a better value for you simply because they'll hold and remain consistent even as they wear very far down. I've used the RE-71RS at a track day before and even as the tires were chunking and melting, they still maintained their grip, as if they were just BEGGING to be abused, to see how far they could be pushed.”
Top themes
#Budget friendly pricing#Street performance and comfort#Tread wear and longevity#Track and grip limitations#Comparison to Michelin

Based on 46 community posts

Specs side by side

Attribute A · Cooper Zeon LTZ B · Kumho Ecsta PS91
CategoryAll Season All Terrain and Off Road tiresSummer
Vehicle typeSUV and 4x4Passenger Car / Crossover
Tread depth14/32″9.5/32″
UTQG520 A B260 A A
SidewallBlackwallBlackwall
Max pressure50 psi50 psi

Which one should you actually buy?

Cooper Zeon LTZ

Kumho Ecsta PS91

Winner: Cooper Zeon LTZ — better treadwear, handling and snow. Pick the Kumho Ecsta PS91 if dry matters most to you. Cooper Zeon LTZ rests on little evidence so far (0 tests, 11 reviews), so read this result as provisional.

Pick tire A You want the longest tread life

Cooper Zeon LTZ scores 66 vs 44 on treadwear.

Pick tire A You enjoy sharp, responsive handling

Cooper Zeon LTZ scores 64 vs 53 on handling.

Pick tire A You drive through snowy winters

Cooper Zeon LTZ scores 47 vs 38 on snow.

Pick tire A You want the most comfortable ride

Cooper Zeon LTZ scores 60 vs 54 on comfort.

Tire A · Cooper Zeon LTZ
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Tire B · Kumho Ecsta PS91
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Zeon LTZ or Ecsta PS91?

Which is better in the wet, Zeon LTZ or Ecsta PS91?

Neither, by our numbers: 66 vs 68 on the wet score, within 3 points.

Which grips better on dry roads, Zeon LTZ or Ecsta PS91?

Kumho Ecsta PS91, 66 vs 62 on our dry score.

Which is better in snow, Zeon LTZ or Ecsta PS91?

Cooper Zeon LTZ, 47 vs 38 on our snow score.

Which is quieter, Zeon LTZ or Ecsta PS91?

Neither, by our numbers: 64 vs 62 on the noise score, within 3 points.

Which is more comfortable, Zeon LTZ or Ecsta PS91?

Cooper Zeon LTZ, 60 vs 54 on our comfort score.

Which lasts longer, Zeon LTZ or Ecsta PS91?

Cooper Zeon LTZ, 66 vs 44 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