Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 2 + 0 road tests and 411 + 14 owner reviews. How we score
Proxes ST is ahead, 71–58
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Tests 59 · 2 tests Owners 61 · 411 reviews
Best test result: #1 of 22 in 2022 Consumer Reports Ultra High Performance Summer Tires (tested tread life (miles))
“Update! I ended up going with the Nitto NT555 G2’s, thanks for all the suggestions. They are amazing tires! They ride smooth for an ultra performance, the price was friendly, and they grip extremely well!”
Tests – · none yet Owners 73 · 14 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | NT555 G2 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 49 | ≈ 71 (est.) |
| Reviews found online | 67 | 75 |
NT555 G2: 60% × 49.4 + 40% × 67.2 = 56
Proxes ST: 60% × 70.5 (est.) + 40% × 74.7 = 72
No road tests of dry for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
| Source | NT555 G2 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 48 | ≈ 74 (est.) |
| Reviews found online | 59 | 77 |
NT555 G2: 60% × 47.7 + 40% × 59 = 52
Proxes ST: 60% × 73.6 (est.) + 40% × 76.6 = 75
No road tests of wet for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
| Source | NT555 G2 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) | ≈ 57 (est.) | ≈ 68 (est.) |
| Reviews found online | 32 | 64 |
NT555 G2: 60% × 57.4 (est.) + 40% × 32 = 47
Proxes ST: 60% × 67.8 (est.) + 40% × 63.6 = 66
No road tests of snow for NT555 G2. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
No road tests of snow for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
| Source | NT555 G2 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) | ≈ 69 (est.) | ≈ 70 (est.) |
| Reviews found online | 67 | 74 |
NT555 G2: 60% × 68.7 (est.) + 40% × 66.7 = 68
Proxes ST: 60% × 70 (est.) + 40% × 74.1 = 72
No road tests of comfort for NT555 G2 or Proxes ST. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | NT555 G2 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) | ≈ 67 (est.) | – |
| Reviews found online | 66 | – |
NT555 G2: 60% × 67.3 (est.) + 40% × 65.9 = 67
No road tests of noise for NT555 G2. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
| Source | NT555 G2 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 81 | ≈ 67 (est.) |
| Reviews found online | 67 | 72 |
NT555 G2: 60% × 80.5 + 40% × 66.9 = 75
Proxes ST: 60% × 67.5 (est.) + 40% × 71.7 = 69
No road tests of treadwear for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
| Source | NT555 G2 | Proxes ST |
|---|---|---|
| Reviews found online | 67 | 71 |
| Category | Nitto NT555 G2 | Toyo Proxes ST |
|---|---|---|
| Relative Score | 58 | 71 |
| Dry | 56 | 72 |
| Wet | 52 | 75 |
| Snow | 47 | 66 |
| Comfort | 68 | 72 |
| Noise | 67 | – |
| Treadwear | 75 | 69 |
| Handling (owners) | 67 | 71 |
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.
NT555 G2
Proxes ST
Only categories both tires have data for count toward the headline score.
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 regarding the Nitto NT555 G2 is divided, with many owners appreciating its affordable price point, quiet street ride, good tread life, and availability in hard-to-find wide sizes. However, numerous drivers express frustration over poor straight-line traction on higher-horsepower vehicles, significant loss of grip in cold temperatures, and dangerous handling or hydroplaning in wet weather. Additionally, several users report persistent issues with flat-spotting when vehicles are parked for extended periods.
“NT555G2 are lower end performance tires. They are not even in the same class as the PSS4S you mention. If you have the money buy the Michelin PSS4s’. Also go wider in the front and rear for better traction and honestly better looks. I run Nitto NT05’s in 275/305/35R19. They are 100% stickier than the 555G2’s and on a warm day the PSS4s’ too that came with my car But that’s the point of them and the rain performance doing the actual speed limit and taking it easy in the rain fine. I have about 530 to the crank and 460 to the wheels. They will not last as long as the 555G2’s but they perform better. When it comes to pure all around best street tire though, the answer is easy the Michelin’s you mentioned are the best if you have the extra money to spend. Get a 275/295/35R19 set up since the profile of the 305 in that tire is too small at just 30 in my opinion. You’ll be very happy with those. Or get the Nitto Nt05 but expect to replace the tires every 10-15k miles depending on how rough you are on them.”
“Finally got new tires on, NT555 G2s”
“Finally slapped on the widened steelies with 285/40/17 Nittos NT555 G2.”
Based on 84 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Nitto NT555 G2 | B · Toyo Proxes ST |
|---|---|---|
| Category | Summer | All Season |
| Vehicle type | Passenger Car / Crossover | SUV and 4x4 |
| Sizes available | 88 | 1 |
| Rim diameters | 15″ – 22″ | 19″ |
| Tread depth | 10.2/32″ | — |
| UTQG | 320 A A | — |
| Sidewall | Blackwall | — |
| Max pressure | 50 psi | — |
Nitto NT555 G2
Toyo Proxes ST
Winner: Toyo Proxes ST — better wet, snow and dry. Pick the Nitto NT555 G2 if treadwear matters most to you. Toyo Proxes ST rests on little evidence so far (0 tests, 14 reviews), so read this result as provisional.
Toyo Proxes ST scores 75 vs 52 on wet.
Toyo Proxes ST scores 66 vs 47 on snow.
Toyo Proxes ST scores 72 vs 56 on dry.
Nitto NT555 G2 scores 75 vs 69 on treadwear.
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Toyo Proxes ST, 75 vs 52 on our wet score.
Toyo Proxes ST, 72 vs 56 on our dry score.
Toyo Proxes ST, 66 vs 47 on our snow score.
Toyo Proxes ST, 72 vs 68 on our comfort score.
Nitto NT555 G2, 75 vs 69 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
