Tests 76 · 21 tests Owners 68 · 1,241 reviews
Best test result: #1 of 21 in 2022 Auto Bild Summer Tyre Test (straight aquaplaning)
“Falken ZIEX ZE310 Ecorun, very grippy especially in the wet”
Kumho Solus HS51 Harmony Sports looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Head-to-head
Updated
Falken ZIEX ZE310 EcoRun vs Kumho Solus HS51 Harmony Sports — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 21 + 1 road tests and 1,241 + 5 owner reviews. How we score
ZIEX ZE310 EcoRun is ahead, 73–67
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Tests 68 · 1 test Owners 67 · 5 reviews
Best test result: #1 of 10 in 2020 Teknikens 17 Inch Summer Tyre Test (straight aquaplaning)
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
75
Dry
ZIEX ZE310 EcoRun +966Why this score
Source ZIEX ZE310 EcoRun Solus HS51 Harmony Sports Professional tests (TWG score) · 20 / 1 tests 79 65 Reviews found online 69 66 ZIEX ZE310 EcoRun: 60% × 79.1 + 40% × 68.5 = 75
Solus HS51 Harmony Sports: 60% × 65.4 + 40% × 65.8 = 66
-
79
Wet
ZIEX ZE310 EcoRun +673Why this score
Source ZIEX ZE310 EcoRun Solus HS51 Harmony Sports Professional tests (TWG score) · 20 / 1 tests 84 75 Reviews found online 71 70 ZIEX ZE310 EcoRun: 60% × 84.4 + 40% × 70.9 = 79
Solus HS51 Harmony Sports: 60% × 75.3 + 40% × 70.4 = 73
-
62
Comfort
ZIEX ZE310 EcoRun +359Why this score
Source ZIEX ZE310 EcoRun Solus HS51 Harmony Sports Professional tests (TWG score) · 2 / 1 tests 60 51 Reviews found online 65 71 ZIEX ZE310 EcoRun: 60% × 60.5 + 40% × 65 = 62
Solus HS51 Harmony Sports: 60% × 51 + 40% × 70.7 = 59
-
67
Noise
No comparison–Why this score
Source ZIEX ZE310 EcoRun Solus HS51 Harmony Sports Professional tests (TWG score) · 14 / – tests 66 – Reviews found online ≈ 67 (est.) – ZIEX ZE310 EcoRun: 60% × 66 + 40% × 67.3 (est.) = 67
No owner ratings of noise for ZIEX ZE310 EcoRun. 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.
-
69
Treadwear
ZIEX ZE310 EcoRun +366Why this score
Source ZIEX ZE310 EcoRun Solus HS51 Harmony Sports Professional tests (TWG score) · 6 / – tests 72 ≈ 66 (est.) Reviews found online 65 66 ZIEX ZE310 EcoRun: 60% × 72.1 + 40% × 64.9 = 69
Solus HS51 Harmony Sports: 60% × 65.7 (est.) + 40% × 65.9 = 66
No road tests of treadwear for Solus HS51 Harmony Sports. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
-
67
Handling (owners)
ZIEX ZE310 EcoRun +661Why this score
Source ZIEX ZE310 EcoRun Solus HS51 Harmony Sports Reviews found online 67 61
Scores at a glance
| Category | Falken ZIEX ZE310 EcoRun | Kumho Solus HS51 Harmony Sports |
|---|---|---|
| Relative Score | 73 | 67 |
| Dry | 75 | 66 |
| Wet | 79 | 73 |
| Comfort | 62 | 59 |
| Noise | 67 | – |
| Treadwear | 69 | 66 |
| Handling (owners) | 67 | 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 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
Recomputed
Headline score
73
/ 100
ZIEX ZE310 EcoRun
67
/ 100
Solus HS51 Harmony Sports
Only categories both tires have data for count toward the headline score.
The professional test results behind the scores
Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.
| Discipline | Category | ZIEX ZE310 EcoRun | Solus HS51 Harmony Sports | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 99% #2/7 · 2025 Motor Low Rolling Resistance (AA) Tyre Test | 91% #9/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Straight Aquaplaning | Wet | 97% #3/7 · 2025 Motor Low Rolling Resistance (AA) Tyre Test | 100% #1/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Wet Braking | Wet | 93% #4/7 · 2025 Motor Low Rolling Resistance (AA) Tyre Test | 95% #5/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Wet Handling | Wet | 98% #4/7 · 2025 Motor Low Rolling Resistance (AA) Tyre Test | 99% #4/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Comfort (tester's mark) | Comfort | 93% #5/7 · 2025 Motor Low Rolling Resistance (AA) Tyre Test | 20% #9/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Rolling Resistance | Efficiency | 86% #5/7 · 2025 Motor Low Rolling Resistance (AA) Tyre Test | 94% #10/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Overall Ranking | Overall | #3/6 2025 Wybór Kierowców Summer Tire Test R16 | #7/10 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A ZIEX ZE310 EcoRun
Pros
- Exceptionally low road noise and high cabin comfort
- Strong grip and stability in both wet and dry weather conditions
- Outstanding value for money compared to premium brands
Cons
- Some drivers report higher rolling resistance and slightly increased fuel consumption
- Soft sidewalls can lead to vague initial steering response or a less sporty feel during hard cornering
- Occasional complaints of a firmer, harsher ride over bumps depending on vehicle suspension and aspect ratio
Tire B Solus HS51 Harmony Sports
Pros
- High level of ride comfort and low noise levels
- Excellent value for money compared to premium brands
- Strong wet weather performance
Cons
- Excessive sidewall softness leading to a 'wobbling' or unstable sensation
- Noticeable decline in grip levels before the tread is fully worn
- Inconsistent handling performance depending on axle placement
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Positive
Falken ZIEX ZE310 EcoRun
Community sentiment regarding the Falken ZIEX ZE310 EcoRun is generally positive, with specific praise noted for its strong wet grip. Users frequently evaluate it as an affordable alternative alongside other budget-friendly options for smaller or standard passenger vehicles.
Top themes
#wet weather performance#budget friendly options#tire size availability#grip and handling#eco-run efficiency
Based on 5 community posts
Tire B
Kumho Solus HS51 Harmony Sports
We haven't collected enough community discussion about this tire yet.
Specs side by side
| Attribute | A · Falken ZIEX ZE310 EcoRun | B · Kumho Solus HS51 Harmony Sports |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 86 | — |
| Rim diameters | 14″ – 19″ | — |
Which one should you actually buy?
73
/ 100
Falken ZIEX ZE310 EcoRun
67
/ 100
Kumho Solus HS51 Harmony Sports
Winner: Falken ZIEX ZE310 EcoRun — better dry, wet and handling. It leads or ties in every category we score. Kumho Solus HS51 Harmony Sports rests on little evidence so far (1 test, 5 reviews), so read this result as provisional.
Pick tire A
You want the most grip on dry roads
Falken ZIEX ZE310 EcoRun scores 75 vs 66 on dry.
Pick tire A
Your priority is wet-weather safety
Falken ZIEX ZE310 EcoRun scores 79 vs 73 on wet.
Pick tire A
You enjoy sharp, responsive handling
Falken ZIEX ZE310 EcoRun scores 67 vs 61 on handling.
Pick tire A
You want the most comfortable ride
Falken ZIEX ZE310 EcoRun scores 62 vs 59 on comfort.
Tire A · Falken ZIEX ZE310 EcoRun
Tire B · Kumho Solus HS51 Harmony Sports
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ZIEX ZE310 EcoRun or Solus HS51 Harmony Sports?
Which is better in the wet, ZIEX ZE310 EcoRun or Solus HS51 Harmony Sports?
Falken ZIEX ZE310 EcoRun, 79 vs 73 on our wet score.
Which grips better on dry roads, ZIEX ZE310 EcoRun or Solus HS51 Harmony Sports?
Falken ZIEX ZE310 EcoRun, 75 vs 66 on our dry score.
Which is more comfortable, ZIEX ZE310 EcoRun or Solus HS51 Harmony Sports?
Falken ZIEX ZE310 EcoRun, 62 vs 59 on our comfort score.
Which lasts longer, ZIEX ZE310 EcoRun or Solus HS51 Harmony Sports?
Falken ZIEX ZE310 EcoRun, 69 vs 66 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