Tests 60 · 2 tests Owners 58 · 412 reviews
Best test result: #1 of 22 in 2022 Consumer Reports Ultra High Performance Summer Tires (tested tread life (miles))
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 2 + 2 road tests and 412 + 31 owner reviews. How we score
R888 R leads, 63–59 Narrow edge
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Tests 60 · 2 tests Owners 58 · 412 reviews
Best test result: #1 of 22 in 2022 Consumer Reports Ultra High Performance Summer Tires (tested tread life (miles))
Tests 65 · 2 tests Owners 60 · 31 reviews
Best test result: #2 of 10 in 2017 Sport Auto UHP and Track Day Test (dry handling)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | NT555 G2 | R888 R |
|---|---|---|
| Professional tests (TWG score) · 1 / 2 tests | 49 | 76 |
| Reviews found online | 64 | 73 |
NT555 G2: 60% × 49.1 + 40% × 63.8 = 55
R888 R: 60% × 76.5 + 40% × 73 = 75
| Source | NT555 G2 | R888 R |
|---|---|---|
| Professional tests (TWG score) · 1 / 2 tests | 48 | 53 |
| Reviews found online | 54 | 59 |
NT555 G2: 60% × 48.3 + 40% × 54 = 51
R888 R: 60% × 52.9 + 40% × 59.1 = 55
| Source | NT555 G2 | R888 R |
|---|---|---|
| Professional tests (TWG score) | ≈ 58 (est.) | – |
| Reviews found online | 33 | – |
NT555 G2: 60% × 58.5 (est.) + 40% × 32.7 = 48
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 0.32).
| Source | NT555 G2 | R888 R |
|---|---|---|
| Professional tests (TWG score) | ≈ 68 (est.) | ≈ 65 (est.) |
| Reviews found online | 65 | 53 |
NT555 G2: 40% × 67.9 (est.) + 60% × 65 = 66
R888 R: 40% × 65.5 (est.) + 60% × 52.8 = 58
No road tests of comfort for NT555 G2. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for R888 R. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | NT555 G2 | R888 R |
|---|---|---|
| Professional tests (TWG score) | ≈ 66 (est.) | – |
| Reviews found online | 64 | – |
NT555 G2: 60% × 66.4 (est.) + 40% × 64.2 = 66
No road tests of noise for NT555 G2. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
| Source | NT555 G2 | R888 R |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 83 | ≈ 59 (est.) |
| Reviews found online | 66 | 46 |
NT555 G2: 60% × 83.3 + 40% × 66 = 76
R888 R: 60% × 59 (est.) + 40% × 45.7 = 54
No road tests of treadwear for R888 R. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
| Source | NT555 G2 | R888 R |
|---|---|---|
| Reviews found online | 62 | 71 |
| Category | Nitto NT555 G2 | Toyo R888 R |
|---|---|---|
| Relative Score | 59 | 63 |
| Dry | 55 | 75 |
| Wet | 51 | 55 |
| Snow | 48 | – |
| Comfort | 66 | 58 |
| Noise | 66 | – |
| Treadwear | 76 | 54 |
| Handling (owners) | 62 | 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.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
NT555 G2
R888 R
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 | NT555 G2 | R888 R | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 89% #10/10 · 2025 Tire Rack UUHP Summer Tyre Test | 99% #2/10 · 2017 Sport Auto UHP and Track Day Test | – | Different tests |
| Dry Handling | Dry | 94% #10/10 · 2025 Tire Rack UUHP Summer Tyre Test | 100% #2/10 · 2017 Sport Auto UHP and Track Day Test | – | Different tests |
| Wet Braking | Wet | 80% #10/10 · 2025 Tire Rack UUHP Summer Tyre Test | 93% #5/10 · 2017 Sport Auto UHP and Track Day Test | – | Different tests |
| Wet Handling | Wet | 89% #10/10 · 2025 Tire Rack UUHP Summer Tyre Test | 90% #8/10 · 2017 Sport Auto UHP and Track Day Test | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #10/10 2025 Tire Rack UUHP Summer Tyre Test | #4/10 2017 Sport Auto UHP and Track Day Test | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · Nitto NT555 G2 | B · Toyo R888 R |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 88 | 45 |
| Rim diameters | 15″ – 22″ | 13″ – 20″ |
| Tread depth | 10.2/32″ | — |
| UTQG | 320 A A | 100 A A |
| Sidewall | Blackwall | — |
| Max pressure | 50 psi | — |
| Sizes in common | 26 | 26 |
Nitto NT555 G2
Toyo R888 R
Narrow edge: Toyo R888 R — better dry, handling and wet. Pick the Nitto NT555 G2 if treadwear and comfort matter most to you.
Nitto NT555 G2 scores 76 vs 54 on treadwear.
Toyo R888 R scores 75 vs 55 on dry.
Toyo R888 R scores 71 vs 62 on handling.
Nitto NT555 G2 scores 66 vs 58 on comfort.
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Toyo R888 R, 55 vs 51 on our wet score.
Toyo R888 R, 75 vs 55 on our dry score.
Nitto NT555 G2, 66 vs 58 on our comfort score.
Nitto NT555 G2, 76 vs 54 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