Kumho Ecsta PS91 vs Kumho Solus HS51 Harmony Sports: the full picture
This comparison is built only from published independent tests — no manufacturer claims and no sponsored reviews. Between them, the Kumho Ecsta PS91 and Kumho Solus HS51 Harmony Sports appear in 7 tests, though they have not yet met head-to-head in the same test. Head-to-head results carry the most weight here, because surface, weather and test car all change between events and make raw numbers from different tests hard to compare directly.
How the Kumho Ecsta PS91 performs. It takes the win in wet, dry, noise / comfort. Its overall Tire Lab Score is 86/100, based on 6 tests.
How the Kumho Solus HS51 Harmony Sports performs. It takes the win in efficiency. Its overall Tire Lab Score is 82/100, based on 1 test.
What this means for you. Category wins matter more than the overall score when your driving is weighted toward one condition — a wet-climate commuter should follow the wet braking column, while a high-mileage driver should follow wear and rolling resistance. Also check that both tires are actually offered in your size and load rating: performance can shift between sizes, and availability differs between the European and North American markets.
Verdict
The Kumho Ecsta PS91 is the stronger all-round choice, leading in wet and Tire Lab Score. The Kumho Solus HS51 Harmony Sports still wins on efficiency, making it the right pick if that matters most to you.
Which one should you buy?
Choose Kumho Ecsta PS91 if
- You prioritise wet
- You prioritise dry
- You prioritise noise / comfort
- You prioritise efficiency
Test profile
| Metric | Kumho Ecsta PS91 | Kumho Solus HS51 Harmony Sports |
|---|---|---|
| Segment | UHP | UHP |
| Type | Summer | Summer |
| Tests used | 6 | 1 |
| Best rank | #1 | #1 |
| Avg rank | 5.8 | 6.1 |
| Latest test | 2023 | 2020 |
| Tire Lab Score | 85.5 | 82.3 |
Tire Lab Score
Kumho Ecsta PS91
Performance overview
Category-by-category results
| Category | Kumho Ecsta PS91 | Kumho Solus HS51 Harmony Sports | Winner |
|---|---|---|---|
| 💧Wet | Avg rank 5.8 21 | Avg rank 6.0 | Kumho Ecsta PS91 |
| ☀️Dry | Avg rank 6.2 2 | Avg rank 9.0 | Kumho Ecsta PS91 |
| 🔇Noise / Comfort | Avg rank 5.6 111 | Avg rank 7.7 | Kumho Ecsta PS91 |
| 🔋Efficiency | Avg rank 2.7 11 | Avg rank 1.0 1 | Kumho Solus HS51 Harmony Sports |
💧 Wet: Kumho Ecsta PS91 vs Kumho Solus HS51 Harmony Sports
The Kumho Ecsta PS91 wins this category with an average rank of 5.8, compared to 6.0 for the Kumho Solus HS51 Harmony Sports.
☀️ Dry: Kumho Ecsta PS91 vs Kumho Solus HS51 Harmony Sports
The Kumho Ecsta PS91 wins this category with an average rank of 6.2, compared to 9.0 for the Kumho Solus HS51 Harmony Sports.
🔇 Noise / Comfort: Kumho Ecsta PS91 vs Kumho Solus HS51 Harmony Sports
The Kumho Ecsta PS91 wins this category with an average rank of 5.6, compared to 7.7 for the Kumho Solus HS51 Harmony Sports.
🔋 Efficiency: Kumho Ecsta PS91 vs Kumho Solus HS51 Harmony Sports
The Kumho Solus HS51 Harmony Sports wins this category with an average rank of 1.0, compared to 2.7 for the Kumho Ecsta PS91.
Frequently asked questions
Which is better in the wet, Kumho Ecsta PS91 or Kumho Solus HS51 Harmony Sports?
Across independent wet-braking tests, the Kumho Ecsta PS91 ranks higher on average than the Kumho Solus HS51 Harmony Sports.
Which has shorter dry braking distance?
The Kumho Ecsta PS91 averages a better dry-braking rank than the Kumho Solus HS51 Harmony Sports across the tests where both appeared.
Which tire is quieter and more comfortable?
On combined noise and comfort metrics, the Kumho Ecsta PS91 ranks better than the Kumho Solus HS51 Harmony Sports.
How many tests were used in this comparison?
Kumho Ecsta PS91 appears in 6 independent tests, Kumho Solus HS51 Harmony Sports in 1.
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Data aggregated from independent testing organizations including ADAC, Auto Bild, TCS, and Auto Motor und Sport. Read our methodology →