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Hankook Optimo K406 vs Kumho Ecowing ES01 KH27 — Compared (May 2026)
Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.
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5 categories, side by side
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
Dry
Why this score
| Source | Optimo K406 | Ecowing ES01 KH27 |
|---|---|---|
| Tyre Reviews owners | 90 | 76 |
Wet
Why this score
| Source | Optimo K406 | Ecowing ES01 KH27 |
|---|---|---|
| Tyre Reviews owners | 83 | 62 |
Comfort
Why this score
| Source | Optimo K406 | Ecowing ES01 KH27 |
|---|---|---|
| Tyre Reviews owners | 66 | 80 |
Treadwear
Why this score
| Source | Optimo K406 | Ecowing ES01 KH27 |
|---|---|---|
| Tyre Reviews owners | 66 | 77 |
Handling
Why this score
| Source | Optimo K406 | Ecowing ES01 KH27 |
|---|---|---|
| Tyre Reviews owners | 61 | 61 |
| DriverReviews owners | – | 82 |
Scores at a glance
| Category | Hankook Optimo K406 | Kumho Ecowing ES01 KH27 |
|---|---|---|
| Relative Score | 74 | 71 |
| Dry | 90 | 76 |
| Wet | 83 | 62 |
| Comfort | 66 | 80 |
| Treadwear | 66 | 77 |
| Handling | 61 | 61 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Tire A
Tire B
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Hankook Optimo K406 receives a mixed reception, primarily serving as an original equipment tire that polarizes users based on their expectations of longevity and comfort. While some drivers report impressive mileage and reliable dry-weather handling, others express significant frustration regarding premature tread wear, sidewall durability, and elevated road noise.
Pros
- Reliable dry-weather grip and handling performance
- Competitive value proposition as an entry-level or OE option
- Potential for high mileage in specific, low-stress driving conditions
Cons
- Inconsistent tread life with reports of premature wear
- Noticeable road noise during highway driving
- Susceptibility to sidewall bubbles and structural damage
- Lack of confidence in wet or icy conditions
Observations
- Users driving heavier vehicles noted that the tires are subjected to significant stress, impacting overall longevity.
- Drivers with stiffer suspension setups reported good cornering capabilities but experienced accelerated wear and sidewall issues.
The Kumho Ecowing ES01 KH27 presents a highly polarized user experience, often described as either an excellent value-oriented eco-tire or a dangerous liability. While many owners praise its fuel efficiency, low noise levels, and comfort for daily commuting, a significant segment of users reports severe concerns regarding wet-weather traction and unpredictable handling during cornering.
Pros
- High fuel efficiency and rolling resistance improvements
- Low road noise and quiet operation
- Good ride comfort and bump absorption
- Strong value for money for casual, non-aggressive driving
Cons
- Unpredictable and poor wet-weather grip
- Tendency to slip or lose traction on roundabouts and corners
- Soft sidewalls leading to a 'jelly' or unstable handling feel
- High-pitched screeching noise when pushed in dry conditions
Observations
- Users driving smaller hatchbacks like the Honda Jazz or VW Up report significant confidence issues with rear-end stability on roundabouts.
- Drivers on rougher road surfaces, such as those in Kenya, noted that while tread life is impressive, the sidewalls are susceptible to damage from potholes.
Specs side by side
| Attribute | A · Hankook Optimo K406 | B · Kumho Ecowing ES01 KH27 |
|---|---|---|
| Category | Summer Touring tires | Summer Premium Touring tires |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
Which one should you actually buy?
Hankook
Kumho
Winner: Hankook Optimo K406 — better wet and dry. Pick the Kumho Ecowing ES01 KH27 if comfort and treadwear matter most to you.
Hankook Optimo K406 scores 83 vs 62 on wet.
Hankook Optimo K406 scores 90 vs 76 on dry.
Kumho Ecowing ES01 KH27 scores 80 vs 66 on comfort.
Kumho Ecowing ES01 KH27 scores 77 vs 66 on treadwear.
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.
Community buzz from Reddit and forums is shown for context only — it never changes the score.