Kumho PorTran 4S CX11 review
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Kumho PorTran 4S CX11 has a Relative Score of 42 out of 100 among all-season tires. 16 owner reviews rate it 26 out of 100. 10% would buy it again.
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
26/100From 16 owner reviews analysed, scaled like the road tests: the average tested tire gets 70.
What owners like and dislike
Themes extracted from 16 owner reviews found online.
The Kumho PorTran 4S CX11 receives polarized feedback from users, with some praising its initial grip and performance compared to factory originals, while others report severe durability and structural issues. Notably, multiple users experienced premature material degradation, including longitudinal cracking in the tread grooves and disintegration in the center of the tire within a few years.
Pros
- Good initial grip and overall performance
- Performs better than certain factory original tires
Cons
- Severe premature degradation and disintegration in the tread center
- Development of longitudinal cracks in the tread grooves leading to inspection failure
- Poor customer service response regarding warranty or product defects
Worth knowing
- No specific vehicle or size insights were provided in the current dataset.
Kumho PorTran 4S CX11 specs & sizes
Prices vary by size, so each one links out separately.
| Specifications | |
|---|---|
| EU label: wet grip | B |
| EU label: energy | C in 82% of sizes |
| EU label: external noise | 71–73 dB |
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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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