Kumho Ecsta KU39 review
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The Kumho Ecsta KU39 is widely regarded as a high-value, mid-range performance tire that offers a compelling alternative to premium brands. Users consistently praise its excellent dry and wet grip, comfort, and low noise levels, often noting that it outperforms more expensive tires while significantly reducing road noise and harshness.
What owners say
No road-test results yet, so every score here comes from owner reviews found online.
How scores work
- Relative score
- 0–100. Blends road tests (60%) and owner reviews (40%) category by category, the same way on every TireWheelGuide page. With only one of the two, the missing half is estimated from it, so the score stays closer to average. It needs at least one road test or five owner reviews.
- Road tests
- 0–100 per score, from published tests, newer tests counting more. Each result is compared with every other tire in the same test, so a win against a strong field counts for more. The average tested tire gets 70, the best 100; with only one or two tests a tire stays nearer 70. The discipline rows show % of the best tire in that test.
- Owner reviews
- 0–100 from the owner reviews we found online, adjusted for how generously each site rates and scaled like the road tests: the average tested tire gets 70. With only a few reviews a tire stays near the average.
By owner reviews
69/100From 125 owner reviews analysed, scaled like the road tests: the average tested tire gets 70.
Kumho Ecsta KU39 specs & sizes
Prices vary by size, so each one links out separately.
| Size | Retailer |
|---|---|
| 225/35 R17 | Amazon |
| 225/55 R17 | Amazon |
| 235/50 R17 | Amazon |
| 215/35 R19 | Amazon |
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What owners like and dislike
Themes extracted from 125 owner reviews found online.
The Kumho Ecsta KU39 is widely regarded as a high-value, mid-range performance tire that offers a compelling alternative to premium brands. Users consistently praise its excellent dry and wet grip, comfort, and low noise levels, often noting that it outperforms more expensive tires while significantly reducing road noise and harshness. While most users are satisfied with the performance, some report concerns regarding tread longevity and a soft sidewall that can impact handling precision during aggressive cornering.
Pros
- Exceptional value for money compared to premium competitors
- Strong wet and dry traction
- Outstanding ride comfort and low road noise
- Progressive and predictable handling characteristics
Cons
- Inconsistent tread life, with some users reporting premature wear
- Soft sidewalls can lead to a lack of steering sharpness or 'squirm' under heavy load
- Performance can drop off noticeably as tread depth approaches 3mm
- Occasional reports of sidewall durability issues or blowouts
Worth knowing
- Users transitioning from run-flat tires on BMW and Mini models reported significant improvements in ride comfort and noise reduction.
- Drivers of high-horsepower, rear-wheel-drive vehicles (e.g., BMW 330ci, Jaguar XJ) noted the tire handles power well but can be sensitive to inflation pressure to maintain optimal handling.
- Some users on heavier vehicles or those with aggressive driving styles reported faster-than-expected tread wear.
Reviews from our readers
Drivers who have these tires on their car, in their own words. We check every review before it goes live.
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8 published test appearances
Placement within each field. Open a test for the discipline-by-discipline result.
2014 Auto Bild Top 15 Summer tire Test · 225/50 R17
8th of 15
Only the final ranking was published for this test, not the results per discipline.
Source: Auto Bild
2014 Auto Bild 50 Summer tire Shootout · 225/50 R17
13th of 49
Only the final ranking was published for this test, not the results per discipline.
Source: Auto Bild
2013 European Summer Sports tire Test · 225/45 R17
10th of 18
Only the final ranking was published for this test, not the results per discipline.
2012 EVO Summer tire Test · 225/45 R17
9th of 10
Only the final ranking was published for this test, not the results per discipline.
Source: evo
2012 Auto Bild Max Performance tire Test · 225/45 R17
15th of 15
Only the final ranking was published for this test, not the results per discipline.
Source: Auto Bild
2012 Autobild 50 tire Braking Test · 225/45 R17
15th of 44
Only the final ranking was published for this test, not the results per discipline.
Source: Auto Bild
2012 EVO Max Performance tire Test · 235/40 R18
9th of 10
Only the final ranking was published for this test, not the results per discipline.
Source: evo
2011 AMS Ultra High Performance tire Test · 225/45 R17
11th of 11
Only the final ranking was published for this test, not the results per discipline.
Source: Auto Motor und Sport
Kumho Ecsta KU39 compared
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