Summer tire Updated October 2026

Kumho Solus HS51 Harmony Sports review

Name: Kumho Solus HS51 Harmony Sports
Brand: Kumho

This tire appears to be discontinued and may no longer be available.

Relative score 60% tests + 40% owners Provisional

Owners 67 · 5 reviews analysed Road tests 68 · 1 test

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Kumho Solus HS51 Harmony Sports has a Relative Score of 67 out of 100 among summer tires. In 5 road tests with an overall ranking it finished first 0 times and in the top three 0 times. 5 owner reviews rate it 67 out of 100. 70% would buy it again.

Weak point: Comfort 51 — 9th of 10 (2020 Teknikens 17 Inch Summer tire Test)

Two scoring systems, side by side

Owner scores come from reviews found online; road-test scores come from instrumented tests. Where they disagree, it is usually a discipline owners rarely push to the limit.

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.

Full methodology

By owner reviews

67/100

From 5 owner reviews analysed, scaled like the road tests: the average tested tire gets 70.

Would buy again 70%

Dry

Overall dry

Corner stability

Dry traction

Steering response

Wet

Overall wet

Wet traction

Comfort

Overall comfort

Treadwear

Overall treadwear

Handling

Overall handling

Own these tires? Write a review →

By road tests

68/100

Scaled across every tested tire: the average gets 70, the best 100.

Dry

Wet

Comfort

By discipline (% of best in test)

Dry Braking

20%

Wet Braking

60%

Wet Handling

70%

Straight Aquaplaning

100%

Subjective Comfort

20%

Rolling Resistance

10%

tire Weight

50%

What owners like and dislike

Themes extracted from 5 owner reviews found online.

The Kumho Solus HS51 Harmony Sports presents a polarizing experience, often praised for its comfort and value in general driving, yet criticized for significant handling instability in specific applications. While some users find them to be a superb mid-range upgrade, others report a disconcerting 'jelly-like' sidewall flex that severely compromises steering precision and dry grip.

Pros

High level of ride comfort and low noise levels
Excellent value for money compared to premium brands
Strong wet weather performance
Improved handling characteristics for van applications

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
Limited durability under spirited driving conditions

Worth knowing

Lightweight vehicles, such as the Mazda MX-5, appear particularly sensitive to the tire's soft sidewall, resulting in reported handling instability.
Users noted that the tire's performance characteristics are highly dependent on axle placement, with some experiencing 'dead' steering or lurching depending on front versus rear fitment.
The tire is reported to perform well in van applications, specifically benefiting from higher load and speed ratings compared to competitors.

5 published test appearances (1 in the score)

Placement within each field. Open a test for the discipline-by-discipline result.

2020 Teknikens 17 Inch Summer tire Test · 225/50 R17

7th of 10

Best: Straight Aquaplaning · 1st Weakest: Dry Braking · 9th

Discipline	Placement	Field position
Wet Braking	5th of 10
Wet Handling	4th of 10
Dry Braking	9th of 10
Rolling Resistance	10th of 10
Straight Aquaplaning	1st of 10
Comfort (tester's mark)	9th of 10
Tyre Weight	6th of 10