Tests – · none yet Owners 71 · 5 reviews
Kumho Ecsta Seven KU23 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Head-to-head
Updated
Kumho Ecsta Seven KU23 vs Yokohama BluEarth AE50 — 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 + 2 road tests and 5 + 36 owner reviews. How we score
Ecsta Seven KU23 is ahead, 71–60
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Tests 72 · 2 tests Owners 49 · 36 reviews
Best test result: #6 of 20 in 2020 Auto Zeitung Summer Tyre Test (dry handling)
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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69
Dry
Ecsta Seven KU23 +762Why this score
Source Ecsta Seven KU23 BluEarth AE50 Professional tests (TWG score) · – / 2 tests ≈ 69 (est.) 72 Reviews found online 70 48 Ecsta Seven KU23: 60% × 69 (est.) + 40% × 70.2 = 69
BluEarth AE50: 60% × 71.6 + 40% × 48.1 = 62
No road tests of dry for Ecsta Seven KU23. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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76
Wet
Ecsta Seven KU23 +1165Why this score
Source Ecsta Seven KU23 BluEarth AE50 Professional tests (TWG score) · – / 2 tests ≈ 75 (est.) 72 Reviews found online 78 55 Ecsta Seven KU23: 60% × 74.7 (est.) + 40% × 77.9 = 76
BluEarth AE50: 60% × 71.8 + 40% × 55 = 65
No road tests of wet for Ecsta Seven KU23. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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70
Comfort
Ecsta Seven KU23 +1159Why this score
Source Ecsta Seven KU23 BluEarth AE50 Professional tests (TWG score) · – / 1 tests ≈ 69 (est.) 73 Reviews found online 70 50 Ecsta Seven KU23: 40% × 69.3 (est.) + 60% × 70.1 = 70
BluEarth AE50: 40% × 72.5 + 60% × 49.6 = 59
No road tests of comfort for Ecsta Seven KU23. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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–
Noise
No comparison69Why this score
Source Ecsta Seven KU23 BluEarth AE50 Professional tests (TWG score) · – / 2 tests – 71 Reviews found online – ≈ 67 (est.) BluEarth AE50: 60% × 71.2 + 40% × 66.6 (est.) = 69
No owner ratings of noise for BluEarth AE50. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
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67
Treadwear
Ecsta Seven KU23 +1651Why this score
Source Ecsta Seven KU23 BluEarth AE50 Professional tests (TWG score) ≈ 67 (est.) ≈ 57 (est.) Reviews found online 68 41 Ecsta Seven KU23: 60% × 66.8 (est.) + 40% × 68 = 67
BluEarth AE50: 60% × 57.3 (est.) + 40% × 41.1 = 51
No road tests of treadwear for Ecsta Seven KU23. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
No road tests of treadwear for BluEarth AE50. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
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65
Handling (owners)
Ecsta Seven KU23 +1352Why this score
Source Ecsta Seven KU23 BluEarth AE50 Reviews found online 65 52 -
–
Efficiency
No comparison78Why this score
Source Ecsta Seven KU23 BluEarth AE50 Professional tests (TWG score) · – / 2 tests – 78
Scores at a glance
| Category | Kumho Ecsta Seven KU23 | Yokohama BluEarth AE50 |
|---|---|---|
| Relative Score | 71 | 60 |
| Dry | 69 | 62 |
| Wet | 76 | 65 |
| Comfort | 70 | 59 |
| Noise | – | 69 |
| Treadwear | 67 | 51 |
| Handling (owners) | 65 | 52 |
| Efficiency | – | 78 |
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
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
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
71
/ 100
Ecsta Seven KU23
60
/ 100
BluEarth AE50
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 Seven KU23
Pros
- Excellent price-to-performance ratio
- Reliable wet-weather traction
- Consistent and even tread wear patterns
Cons
- Inconsistent tread life expectations
- Potential for faster wear compared to premium-tier competitors
- Limited long-term durability data
Tire B BluEarth AE50
Pros
- Strong wet and dry road grip for daily commuting
- High levels of ride comfort and smoothness
- Good value for money compared to premium competitors
Cons
- Rapid and premature tread wear reported by many users
- Significant increase in road noise as the tire ages
- Soft sidewalls leading to vague steering feedback and poor cornering stability
Specs side by side
| Attribute | A · Kumho Ecsta Seven KU23 | B · Yokohama BluEarth AE50 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | — | 28 |
| Rim diameters | — | 14″ – 18″ |
Which one should you actually buy?
71
/ 100
Kumho Ecsta Seven KU23
60
/ 100
Yokohama BluEarth AE50
Winner: Kumho Ecsta Seven KU23 — better treadwear, handling and wet. It leads or ties in every category we score. Kumho Ecsta Seven KU23 rests on little evidence so far (0 tests, 5 reviews), so read this result as provisional.
Pick tire A
You want the longest tread life
Kumho Ecsta Seven KU23 scores 67 vs 51 on treadwear.
Pick tire A
You enjoy sharp, responsive handling
Kumho Ecsta Seven KU23 scores 65 vs 52 on handling.
Pick tire A
Your priority is wet-weather safety
Kumho Ecsta Seven KU23 scores 76 vs 65 on wet.
Pick tire A
You want the most comfortable ride
Kumho Ecsta Seven KU23 scores 70 vs 59 on comfort.
Tire A · Kumho Ecsta Seven KU23
Tire B · Yokohama BluEarth AE50
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Ecsta Seven KU23 or BluEarth AE50?
Which is better in the wet, Ecsta Seven KU23 or BluEarth AE50?
Kumho Ecsta Seven KU23, 76 vs 65 on our wet score.
Which grips better on dry roads, Ecsta Seven KU23 or BluEarth AE50?
Kumho Ecsta Seven KU23, 69 vs 62 on our dry score.
Which is more comfortable, Ecsta Seven KU23 or BluEarth AE50?
Kumho Ecsta Seven KU23, 70 vs 59 on our comfort score.
Which lasts longer, Ecsta Seven KU23 or BluEarth AE50?
Kumho Ecsta Seven KU23, 67 vs 51 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