Tests – · none yet Owners 63 · 259 reviews
Head-to-head
Updated
Kumho Ecsta PS31 vs Cooper Zeon CS8 — 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 + 12 road tests and 259 + 17 owner reviews. How we score
Too close to call: Ecsta PS31 and Zeon CS8 are level at 66.
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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.
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63
Dry
Ecsta PS31 +261Why this score
Source Ecsta PS31 Zeon CS8 Professional tests (TWG score) · – / 12 tests ≈ 65 (est.) 54 Reviews found online 60 72 Ecsta PS31: 60% × 64.6 (est.) + 40% × 59.7 = 63
Zeon CS8: 60% × 53.6 + 40% × 72.2 = 61
No road tests of dry for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
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68
Wet
Zeon CS8 +573Why this score
Source Ecsta PS31 Zeon CS8 Professional tests (TWG score) · – / 12 tests ≈ 69 (est.) 73 Reviews found online 68 74 Ecsta PS31: 60% × 69 (est.) + 40% × 67.6 = 68
Zeon CS8: 60% × 73.3 + 40% × 73.6 = 73
No road tests of wet for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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58
Snow
No comparison–Why this score
Source Ecsta PS31 Zeon CS8 Professional tests (TWG score) ≈ 64 (est.) – Reviews found online 49 – Ecsta PS31: 60% × 63.7 (est.) + 40% × 49.2 = 58
No road tests of snow for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
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65
Comfort
Zeon CS8 +570Why this score
Source Ecsta PS31 Zeon CS8 Professional tests (TWG score) ≈ 68 (est.) ≈ 69 (est.) Reviews found online 64 70 Ecsta PS31: 40% × 67.7 (est.) + 60% × 63.9 = 65
Zeon CS8: 40% × 68.9 (est.) + 60% × 70 = 70
No road tests of comfort for Ecsta PS31. 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 Zeon CS8. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
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66
Noise
Zeon CS8 +672Why this score
Source Ecsta PS31 Zeon CS8 Professional tests (TWG score) · – / 5 tests ≈ 66 (est.) 76 Reviews found online 66 ≈ 66 (est.) Ecsta PS31: 60% × 66.4 (est.) + 40% × 66.3 = 66
Zeon CS8: 60% × 75.7 + 40% × 66.4 (est.) = 72
No road tests of noise for Ecsta PS31. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
No owner ratings of noise for Zeon CS8. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
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65
Treadwear
Ecsta PS31 +758Why this score
Source Ecsta PS31 Zeon CS8 Professional tests (TWG score) · – / 3 tests ≈ 66 (est.) 52 Reviews found online 65 66 Ecsta PS31: 60% × 65.9 (est.) + 40% × 64.8 = 65
Zeon CS8: 60% × 52.2 + 40% × 66 = 58
No road tests of treadwear for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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68
Handling (owners)
Zeon CS8 +169Why this score
Source Ecsta PS31 Zeon CS8 Reviews found online 68 69 -
–
Efficiency
No comparison42Why this score
Source Ecsta PS31 Zeon CS8 Professional tests (TWG score) · – / 5 tests – 42
Scores at a glance
| Category | Kumho Ecsta PS31 | Cooper Zeon CS8 |
|---|---|---|
| Relative Score | 66 | 66 |
| Dry | 63 | 61 |
| Wet | 68 | 73 |
| Snow | 58 | – |
| Comfort | 65 | 70 |
| Noise | 66 | 72 |
| Treadwear | 65 | 58 |
| Handling (owners) | 68 | 69 |
| Efficiency | – | 42 |
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
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
66
/ 100
Ecsta PS31
66
/ 100
Zeon CS8
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 Ecsta PS31
Pros
- Excellent price-to-performance ratio
- High levels of ride comfort and low road noise
- Strong dry traction for daily and spirited street driving
Cons
- Soft sidewalls lead to vague steering response and 'squirm' during aggressive maneuvers
- Inconsistent wet weather performance reported by some users, particularly in deep standing water
- Tread life can be shorter than expected for some driving styles
Tire B Zeon CS8
Pros
- Excellent wet-weather grip and braking performance
- High value-for-money proposition compared to premium competitors
- Quiet and comfortable ride quality
Cons
- Reports of premature sidewall perishing and cracking
- Inconsistent tread life with some users experiencing rapid wear
- Increased road noise as the tire reaches the end of its life
Specs side by side
| Attribute | A · Kumho Ecsta PS31 | B · Cooper Zeon CS8 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 21 | — |
| Rim diameters | 15″ – 18″ | — |
| Tread depth | 10/32″ | — |
| UTQG | 460 A A | — |
| Sidewall | Blackwall | — |
| Max pressure | 51 psi | — |
Which one should you actually buy?
66
/ 100
Kumho Ecsta PS31
66
/ 100
Cooper Zeon CS8
Too close to call: Kumho Ecsta PS31 and Cooper Zeon CS8 are within 2 points overall. Kumho Ecsta PS31 is stronger on treadwear. Cooper Zeon CS8 is stronger on noise, wet and comfort.
Pick tire A
You want the longest tread life
Kumho Ecsta PS31 scores 65 vs 58 on treadwear.
Pick tire B
You want a quieter cabin
Cooper Zeon CS8 scores 72 vs 66 on noise.
Pick tire B
Your priority is wet-weather safety
Cooper Zeon CS8 scores 73 vs 68 on wet.
Pick tire B
You want the most comfortable ride
Cooper Zeon CS8 scores 70 vs 65 on comfort.
Tire A · Kumho Ecsta PS31
Tire B · Cooper Zeon CS8
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Ecsta PS31 or Zeon CS8?
Which is better in the wet, Ecsta PS31 or Zeon CS8?
Cooper Zeon CS8, 73 vs 68 on our wet score.
Which grips better on dry roads, Ecsta PS31 or Zeon CS8?
Neither, by our numbers: 63 vs 61 on the dry score, within 3 points.
Which is quieter, Ecsta PS31 or Zeon CS8?
Cooper Zeon CS8, 72 vs 66 on our noise score.
Which is more comfortable, Ecsta PS31 or Zeon CS8?
Cooper Zeon CS8, 70 vs 65 on our comfort score.
Which lasts longer, Ecsta PS31 or Zeon CS8?
Kumho Ecsta PS31, 65 vs 58 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