Tests – · none yet Owners 81 · 6 reviews
Head-to-head
Updated
Michelin Power GP vs Pirelli Diablo Rosso III — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 0 road tests and 6 + 9 owner reviews. How we score
Power GP leads, 77–73 Narrow edge
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Tests – · none yet Owners 74 · 9 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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79
Dry
Power GP +574Why this score
Source Power GP Diablo Rosso III Professional tests (TWG score) ≈ 75 (est.) ≈ 72 (est.) Reviews found online 86 77 Power GP: 60% × 75.3 (est.) + 40% × 85.7 = 79
Diablo Rosso III: 60% × 71.8 (est.) + 40% × 77.2 = 74
No road tests of dry for Power GP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
No road tests of dry for Diablo Rosso III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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77
Wet
Power GP +374Why this score
Source Power GP Diablo Rosso III Professional tests (TWG score) ≈ 76 (est.) ≈ 73 (est.) Reviews found online 80 75 Power GP: 60% × 75.6 (est.) + 40% × 79.5 = 77
Diablo Rosso III: 60% × 73 (est.) + 40% × 74.9 = 74
No road tests of wet for Power GP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
No road tests of wet for Diablo Rosso III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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77
Comfort
Power GP +473Why this score
Source Power GP Diablo Rosso III Professional tests (TWG score) ≈ 71 (est.) ≈ 70 (est.) Reviews found online 81 75 Power GP: 40% × 71.3 (est.) + 60% × 81.1 = 77
Diablo Rosso III: 40% × 70 (est.) + 60% × 74.9 = 73
No road tests of comfort for Power GP. 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 Diablo Rosso III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
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72
Treadwear
Power GP +567Why this score
Source Power GP Diablo Rosso III Professional tests (TWG score) ≈ 70 (est.) ≈ 67 (est.) Reviews found online 75 67 Power GP: 60% × 69.7 (est.) + 40% × 75.4 = 72
Diablo Rosso III: 60% × 66.7 (est.) + 40% × 67 = 67
No road tests of treadwear for Power GP. 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 Diablo Rosso III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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85
Handling (owners)
Power GP +679Why this score
Source Power GP Diablo Rosso III Reviews found online 85 79
Scores at a glance
| Category | Michelin Power GP | Pirelli Diablo Rosso III |
|---|---|---|
| Relative Score | 77 | 73 |
| Dry | 79 | 74 |
| Wet | 77 | 74 |
| Comfort | 77 | 73 |
| Treadwear | 72 | 67 |
| Handling (owners) | 85 | 79 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
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.
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
77
/ 100
Power GP
73
/ 100
Diablo Rosso III
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Power GP
Pros
- Rapid warm-up time providing immediate confidence
- Exceptional dry grip and predictable feedback
- Superior performance in damp or wet conditions compared to competitors
Cons
- Limited tread life, with some users reporting replacement intervals between 5,000 and 6,000 kilometers
- Potential for uneven wear or cupping on the tire edges
- High performance focus may not suit riders prioritizing maximum longevity
Tire B Diablo Rosso III
Pros
- Exceptional dry grip and predictable handling at various lean angles
- Improved wet-weather performance compared to more aggressive track-oriented tires
- Fast warm-up times providing immediate confidence
Cons
- Inconsistent tread life, with some users reporting premature rear tire wear
- Potential for rapid degradation under aggressive riding styles
- Isolated reports of structural issues such as delamination
Specs side by side
| Attribute | A · Michelin Power GP | B · Pirelli Diablo Rosso III |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
77
/ 100
Michelin Power GP
73
/ 100
Pirelli Diablo Rosso III
Narrow edge: Michelin Power GP — better handling, dry and treadwear. It leads or ties in every category we score. Michelin Power GP rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional. Pirelli Diablo Rosso III rests on little evidence so far (0 tests, 9 reviews), so read this result as provisional.
Pick tire A
You enjoy sharp, responsive handling
Michelin Power GP scores 85 vs 79 on handling.
Pick tire A
You want the most grip on dry roads
Michelin Power GP scores 79 vs 74 on dry.
Pick tire A
You want the longest tread life
Michelin Power GP scores 72 vs 67 on treadwear.
Pick tire A
You want the most comfortable ride
Michelin Power GP scores 77 vs 73 on comfort.
Tire A · Michelin Power GP
Tire B · Pirelli Diablo Rosso III
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Power GP or Diablo Rosso III?
Which is better in the wet, Power GP or Diablo Rosso III?
Michelin Power GP, 77 vs 74 on our wet score.
Which grips better on dry roads, Power GP or Diablo Rosso III?
Michelin Power GP, 79 vs 74 on our dry score.
Which is more comfortable, Power GP or Diablo Rosso III?
Michelin Power GP, 77 vs 73 on our comfort score.
Which lasts longer, Power GP or Diablo Rosso III?
Michelin Power GP, 72 vs 67 on our treadwear score.
How do we compare tires?
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