Tests 75 · 1 test Owners 81 · 182 reviews
Best test result: #5 of 12 in 2025 Sport and Hypersport Motorcycle Tyre Test (wet handling)
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 1 + 2 road tests and 182 + 7 owner reviews. How we score
Diablo Rosso IV is ahead, 77–69
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Tests 75 · 1 test Owners 81 · 182 reviews
Best test result: #5 of 12 in 2025 Sport and Hypersport Motorcycle Tyre Test (wet handling)
Tests 68 · 2 tests Owners 70 · 7 reviews
Best test result: #2 of 6 in Best Motorcycle Tyres for 2024 (wet braking)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Diablo Rosso IV | Angel GT II |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 68 | 63 |
| Reviews found online | 86 | 71 |
Diablo Rosso IV: 60% × 67.8 + 40% × 86.3 = 75
Angel GT II: 60% × 63 + 40% × 71.3 = 66
| Source | Diablo Rosso IV | Angel GT II |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 81 | 74 |
| Reviews found online | 83 | 73 |
Diablo Rosso IV: 60% × 81.4 + 40% × 82.5 = 82
Angel GT II: 60% × 73.6 + 40% × 73.4 = 74
| Source | Diablo Rosso IV | Angel GT II |
|---|---|---|
| Professional tests (TWG score) | ≈ 71 (est.) | ≈ 67 (est.) |
| Reviews found online | 80 | 62 |
Diablo Rosso IV: 40% × 70.9 (est.) + 60% × 80.1 = 76
Angel GT II: 40% × 67.3 (est.) + 60% × 61.8 = 64
No road tests of comfort for Diablo Rosso IV. 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 Angel GT II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | Diablo Rosso IV | Angel GT II |
|---|---|---|
| Professional tests (TWG score) | ≈ 68 (est.) | ≈ 67 (est.) |
| Reviews found online | 71 | 69 |
Diablo Rosso IV: 60% × 68.3 (est.) + 40% × 71.4 = 70
Angel GT II: 60% × 67.3 (est.) + 40% × 68.7 = 68
No road tests of treadwear for Diablo Rosso IV. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
No road tests of treadwear for Angel GT II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
| Source | Diablo Rosso IV | Angel GT II |
|---|---|---|
| Reviews found online | 86 | 70 |
| Category | Pirelli Diablo Rosso IV | Pirelli Angel GT II |
|---|---|---|
| Relative Score | 77 | 69 |
| Dry | 75 | 66 |
| Wet | 82 | 74 |
| Comfort | 76 | 64 |
| Treadwear | 70 | 68 |
| Handling (owners) | 86 | 70 |
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.
Diablo Rosso IV
Angel GT II
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 | Diablo Rosso IV | Angel GT II | Δ | Head-to-head |
|---|---|---|---|---|---|
| Wet Handling | Wet | 97% #5/12 · 2025 Sport and Hypersport Motorcycle Tyre Test | 99% #3/6 · Best Motorcycle Tyres for 2024 | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #5/12 2025 Sport and Hypersport Motorcycle Tyre Test | #2/6 Best Motorcycle Tyres for 2024 | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · Pirelli Diablo Rosso IV | B · Pirelli Angel GT II |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Pirelli Diablo Rosso IV
Pirelli Angel GT II
Winner: Pirelli Diablo Rosso IV — better handling, comfort and dry. It leads or ties in every category we score.
Pirelli Diablo Rosso IV scores 86 vs 70 on handling.
Pirelli Diablo Rosso IV scores 76 vs 64 on comfort.
Pirelli Diablo Rosso IV scores 75 vs 66 on dry.
Pirelli Diablo Rosso IV scores 82 vs 74 on wet.
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Pirelli Diablo Rosso IV, 82 vs 74 on our wet score.
Pirelli Diablo Rosso IV, 75 vs 66 on our dry score.
Pirelli Diablo Rosso IV, 76 vs 64 on our comfort score.
Neither, by our numbers: 70 vs 68 on the treadwear score, within 3 points.
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