Tests 68 · 1 test Owners 67 · 5 reviews
Best test result: #1 of 10 in 2020 Teknikens 17 Inch Summer Tyre Test (straight aquaplaning)
Kumho Solus HS51 Harmony Sports looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 1 + 1 road tests and 5 + 1,807 owner reviews. How we score
Too close to call: Solus HS51 Harmony Sports 67, Powergy 68.
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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)
Tests 76 · 1 test Owners 61 · 1,807 reviews
Best test result: #1 of 10 in 2026 autozurnal Eco Summer Tyre Test (noise)
“Ripples in side wall Just been washing the car and found what I can only describe as ripples in the side wall of my front-right tyre. Had these fitted in June, only just noticed the ripples. The other tyres are perfect. I’ve probably done around 2,000 miles on them. Should I be concerned, and do they look like a manufacturing defect, or as a result of damage? (I’ve not hit any serious potholes that I’m aware of). These tyres are Pirelli Powergy, fitted to a Volvo XC60. Date code is 3325. Any help gratefully received. Read more”
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Solus HS51 Harmony Sports | Powergy |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 65 | 77 |
| Reviews found online | 66 | 64 |
Solus HS51 Harmony Sports: 60% × 65.4 + 40% × 65.8 = 66
Powergy: 60% × 76.9 + 40% × 64.4 = 72
| Source | Solus HS51 Harmony Sports | Powergy |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 75 | 76 |
| Reviews found online | 70 | 67 |
Solus HS51 Harmony Sports: 60% × 75.3 + 40% × 70.4 = 73
Powergy: 60% × 75.6 + 40% × 67.2 = 72
| Source | Solus HS51 Harmony Sports | Powergy |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 51 | 74 |
| Reviews found online | 71 | 58 |
Solus HS51 Harmony Sports: 60% × 51 + 40% × 70.7 = 59
Powergy: 60% × 73.9 + 40% × 58 = 68
| Source | Solus HS51 Harmony Sports | Powergy |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | – | 80 |
| Reviews found online | – | ≈ 67 (est.) |
Powergy: 60% × 79.6 + 40% × 67.3 (est.) = 75
No owner ratings of noise for Powergy. 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.
| Source | Solus HS51 Harmony Sports | Powergy |
|---|---|---|
| Professional tests (TWG score) | ≈ 66 (est.) | ≈ 61 (est.) |
| Reviews found online | 66 | 51 |
Solus HS51 Harmony Sports: 60% × 65.7 (est.) + 40% × 65.9 = 66
Powergy: 60% × 61 (est.) + 40% × 50.5 = 57
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).
No road tests of treadwear for Powergy. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
| Source | Solus HS51 Harmony Sports | Powergy |
|---|---|---|
| Reviews found online | 61 | 64 |
| Category | Kumho Solus HS51 Harmony Sports | Pirelli Powergy |
|---|---|---|
| Relative Score | 67 | 68 |
| Dry | 66 | 72 |
| Wet | 73 | 72 |
| Comfort | 59 | 68 |
| Noise | – | 75 |
| Treadwear | 66 | 57 |
| Handling (owners) | 61 | 64 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Solus HS51 Harmony Sports
Powergy
Only categories both tires have data for count toward the headline score.
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 | Solus HS51 Harmony Sports | Powergy | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 91% #9/10 · 2020 Teknikens 17 Inch Summer Tyre Test | 94% #4/10 · 2026 autozurnal Eco Summer Tyre Test | – | Different tests |
| Straight Aquaplaning | Wet | 100% #1/10 · 2020 Teknikens 17 Inch Summer Tyre Test | 92% #4/10 · 2026 autozurnal Eco Summer Tyre Test | – | Different tests |
| Wet Braking | Wet | 95% #5/10 · 2020 Teknikens 17 Inch Summer Tyre Test | 96% #5/10 · 2026 autozurnal Eco Summer Tyre Test | – | Different tests |
| Wet Handling | Wet | 99% #4/10 · 2020 Teknikens 17 Inch Summer Tyre Test | 97% #2/10 · 2026 autozurnal Eco Summer Tyre Test | – | Different tests |
| Comfort (tester's mark) | Comfort | 20% #9/10 · 2020 Teknikens 17 Inch Summer Tyre Test | 93% #3/10 · 2026 autozurnal Eco Summer Tyre Test | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Rolling Resistance | Efficiency | 94% #10/10 · 2020 Teknikens 17 Inch Summer Tyre Test | 81% #5/10 · 2026 autozurnal Eco Summer Tyre Test | – | Different tests |
| Overall Ranking | Overall | #7/10 2020 Teknikens 17 Inch Summer Tyre Test | #5/10 2026 autozurnal Eco Summer Tyre Test | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
We haven't collected enough community discussion about this tire yet.
Community discussions around Pirelli Powergy show mixed views, with many users regarding them as an eco or budget-oriented alternative rather than a performance tire. While some drivers appreciate the attractive pricing and consider them decent for daily driving and fuel economy, others report issues such as highway vibrations or express uncertainty about mixing them with premium lines like Cinturato.
“Avg 29mpg on a 2015 Mazda 3 Sport Nav 2L 165bhp, any ideas? I've had this car for about 3-4 weeks now, posted it here on this subreddit too. So far, I've done about 800 miles and my average fuel consumtion seems to be around 29mpg - 10.2L/100km. The car doesn't have its original rims, its on **MAM RS3** 18" rims with Pirelli Powergy tires 215/45/R18 (internet says these tires provide good fuel economy). On longer trips the average is about 40mpg-45mpg which still seems a bit high. My work commute is about 2 miles, and I do occasionally drive in a spirited manner. Is this okay? Thank you all!”
“Are Pirelli Powergy Winter the right winter tires for the GR? Hey, my parents bought a GR Yaris last week and it’s a great car but I looked at its winter tires and those are Pirelli Powergy Winter. I’m not an expert on tires but as far as I know the P-Zero Winter would be the right choice for a GR. My father didn’t bought them because he thought it was the right tires rather a tire salesman talked him into it. I talked him into Pirelli as those were the factory tires for his Volvo 850R and would be a better choice then his current Conti Premium 5 but somehow my father misunderstood me to that point that Pirelli’s are the greatest tires ever. So he asked the salesmen for the best Pirelli Tires and told the car it’s for but the salesman sold him those Powergy tires and said that not all Pirelli’s are in stock. As my father isn’t an enthusiast but loves likes to drive performance cars he didn’t knew better and now it’s too late. In my eyes a good salesman (not in the way of profit for the company rather costumer experience) would have told him that the P-Zeros winter are out of stock but can be ordered or would show him tires from different companies. Another option is the salesman though he meant the GR Sport Yaris for which P-Zero winters are too much as not many persons in their sixties drive a real GR. So my question are the Powergy enough for the GR or should he get P-Zeros next Winter (in a few weeks we will put on summer tires)”
“Pirelli cinturato P7 and Pirelli Powergy Hi all 👋🏼 So I had 4 Pirelli Cinturato P7’s on my Ford Focus ST. I got a flat tire (front left) while I was on vacation so I decided to get 2 new tires at the front. I asked the guy at the tire shop to get the same tires (so the Pirelli Cinturato’s). He got me Pirelli Powergy’s instead… He didn’t really speak English and there was not time as I was driving home the next day. So I just accepted it. Now my question is what’s the main difference between these tires? And does it matter I got 2 different tires now? (2 powergy’s at the front and 2 Cinturato’s at the back) Thanks!🙏🏼”
Based on 17 community posts
| Attribute | A · Kumho Solus HS51 Harmony Sports | B · Pirelli Powergy |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | — |
| Sizes available | — | 87 |
| Rim diameters | — | 15″ – 21″ |
Kumho Solus HS51 Harmony Sports
Pirelli Powergy
Too close to call: Kumho Solus HS51 Harmony Sports and Pirelli Powergy are within 2 points overall. Kumho Solus HS51 Harmony Sports is stronger on treadwear. Pirelli Powergy is stronger on comfort and dry. Kumho Solus HS51 Harmony Sports rests on little evidence so far (1 test, 5 reviews), so read this result as provisional.
Kumho Solus HS51 Harmony Sports scores 66 vs 57 on treadwear.
Pirelli Powergy scores 68 vs 59 on comfort.
Pirelli Powergy scores 72 vs 66 on dry.
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Neither, by our numbers: 73 vs 72 on the wet score, within 3 points.
Pirelli Powergy, 72 vs 66 on our dry score.
Pirelli Powergy, 68 vs 59 on our comfort score.
Kumho Solus HS51 Harmony Sports, 66 vs 57 on our treadwear score.
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