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 2 + 1 road tests and 452 + 5 owner reviews. How we score
Potenza RE 71RS is ahead, 75–67
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Tests 77 · 2 tests Owners 71 · 452 reviews
Best test result: #1 of 7 in 2025 Tire Rack Extreme Performance Track Tyre Test (subj. wet handling)
“Drove my GR86 coast to coast on pre-thrashed 200tw tires in 3.5 days AMA 2024 GR86 Premium performance package mt Bridgestone Potenza RE-71rs tires Car had 24,000ish miles and now has 27,000ish”
Tests 68 · 1 test Owners 67 · 5 reviews
Best test result: #1 of 10 in 2020 Teknikens 17 Inch Summer Tyre Test (straight aquaplaning)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Potenza RE 71RS | Solus HS51 Harmony Sports |
|---|---|---|
| Professional tests (TWG score) · 2 / 1 tests | 76 | 65 |
| Reviews found online | 89 | 66 |
Potenza RE 71RS: 60% × 75.8 + 40% × 89.2 = 81
Solus HS51 Harmony Sports: 60% × 65.4 + 40% × 65.8 = 66
| Source | Potenza RE 71RS | Solus HS51 Harmony Sports |
|---|---|---|
| Professional tests (TWG score) · 2 / 1 tests | 84 | 75 |
| Reviews found online | 68 | 70 |
Potenza RE 71RS: 60% × 83.9 + 40% × 67.7 = 77
Solus HS51 Harmony Sports: 60% × 75.3 + 40% × 70.4 = 73
| Source | Potenza RE 71RS | Solus HS51 Harmony Sports |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 71 | 51 |
| Reviews found online | 56 | 71 |
Potenza RE 71RS: 60% × 71.1 + 40% × 56.1 = 65
Solus HS51 Harmony Sports: 60% × 51 + 40% × 70.7 = 59
| Source | Potenza RE 71RS | Solus HS51 Harmony Sports |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 67 | – |
| Reviews found online | 64 | – |
Potenza RE 71RS: 60% × 66.6 + 40% × 64.2 = 66
| Source | Potenza RE 71RS | Solus HS51 Harmony Sports |
|---|---|---|
| Professional tests (TWG score) | ≈ 63 (est.) | ≈ 66 (est.) |
| Reviews found online | 59 | 66 |
Potenza RE 71RS: 60% × 63.4 (est.) + 40% × 58.5 = 61
Solus HS51 Harmony Sports: 60% × 65.7 (est.) + 40% × 65.9 = 66
No road tests of treadwear for Potenza RE 71RS. 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 Solus HS51 Harmony Sports. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
| Source | Potenza RE 71RS | Solus HS51 Harmony Sports |
|---|---|---|
| Reviews found online | 84 | 61 |
| Category | Bridgestone Potenza RE 71RS | Kumho Solus HS51 Harmony Sports |
|---|---|---|
| Relative Score | 75 | 67 |
| Dry | 81 | 66 |
| Wet | 77 | 73 |
| Comfort | 65 | 59 |
| Noise | 66 | – |
| Treadwear | 61 | 66 |
| Handling (owners) | 84 | 61 |
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.
Potenza RE 71RS
Solus HS51 Harmony Sports
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 | Potenza RE 71RS | Solus HS51 Harmony Sports | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 100% #2/7 · 2025 Tire Rack Extreme Performance Track Tyre Test | 91% #9/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Wet Braking | Wet | 100% #1/7 · 2025 Tire Rack Extreme Performance Track Tyre Test | 95% #5/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Wet Handling | Wet | 100% #1/7 · 2025 Tire Rack Extreme Performance Track Tyre Test | 99% #4/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Comfort (tester's mark) | Comfort | 96% #4/7 · 2025 Tire Rack Extreme Performance Track Tyre Test | 20% #9/10 · 2020 Teknikens 17 Inch Summer Tyre Test | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #1/7 2025 Tire Rack Extreme Performance Track Tyre Test | #7/10 2020 Teknikens 17 Inch 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
Community sentiment toward the Bridgestone Potenza RE-71RS is overwhelmingly positive, with drivers praising its high grip levels, responsive turn-in, and improved refinement over the older RE-71R. Discussions frequently center around track and autocross setups, optimal hot tire pressures, clearance pricing, and its streetability regarding road noise and gravel pickup. Minor caveats noted include fast wear characteristic of 200tw competition tires and rotation limits stemming from an asymmetrical tread design.
“Mileage-expectancy of Bridgestone Potenza RE-71Rs? (200-rated, I think?) Forgive me I'm getting the terminology wrong, but I just bought a super dynamite NA Miata that has had a TON of incredible suspension work (mostly Flyin' Miata stuff) and the stickiest tires I have ever experienced by FAR: Potenza RE-71Rs. (Forget full measurements but they're on 15 x 7.5" inch wheels, 6UL's by 949 Racing.) And I think their life is pretty much over. I love them but I don't want to track the car; I want to drive it two hours into the country every other weekend. I want to drive through the mountains with great . . . spiritedness . . . but I don't need track-focused tires. I'd much rather have something slightly less grippy in exchange for longer tread life. The previous owner (who I've stayed in touch with) recommenced I get "300-rated" tires instead of "200-rated" tires. I don't really know what that means or how many miles I can expect from such a tire. I'm contemplating getting the Continental Extreme Contacts, but I just don't know enough about tires to know what they're like or how much ACTUAL mileage I can get----I also dont' understand 200 vs. 300 tires. Please help?”
“Drove my GR86 coast to coast on pre-thrashed 200tw tires in 3.5 days AMA 2024 GR86 Premium performance package mt Bridgestone Potenza RE-71rs tires Car had 24,000ish miles and now has 27,000ish”
“They are an amazing tire, both for autocross and track days. I'm currently running Falkens but my next track set will be RE71s for sure. Should be able to get a half second off my laps from what I've seen so far.”
Based on 33 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Bridgestone Potenza RE 71RS | B · Kumho Solus HS51 Harmony Sports |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 10 | — |
| Rim diameters | 15″ – 19″ | — |
| Tread depth | 7/32″ | — |
| UTQG | 200 A A | — |
| Sidewall | Blackwall | — |
| Max pressure | 51 psi | — |
Bridgestone Potenza RE 71RS
Kumho Solus HS51 Harmony Sports
Winner: Bridgestone Potenza RE 71RS — better handling, dry and comfort. Pick the Kumho Solus HS51 Harmony Sports if treadwear matters most to you. Kumho Solus HS51 Harmony Sports rests on little evidence so far (1 test, 5 reviews), so read this result as provisional.
Bridgestone Potenza RE 71RS scores 84 vs 61 on handling.
Bridgestone Potenza RE 71RS scores 81 vs 66 on dry.
Bridgestone Potenza RE 71RS scores 65 vs 59 on comfort.
Kumho Solus HS51 Harmony Sports scores 66 vs 61 on treadwear.
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Bridgestone Potenza RE 71RS, 77 vs 73 on our wet score.
Bridgestone Potenza RE 71RS, 81 vs 66 on our dry score.
Bridgestone Potenza RE 71RS, 65 vs 59 on our comfort score.
Kumho Solus HS51 Harmony Sports, 66 vs 61 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
