Prices change daily — check the retailer for your size.
Dunlop Signature HP vs Pirelli Diablo Rosso III — Compared (May 2026)
Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.
Prices change daily — check the retailer for your size.
TireWheelGuide may earn a commission from purchases made via links on this page.
5 categories, side by side
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
Dry
Why this score
| Source | Signature HP | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 60 | 90 |
| SimpleTire owners | 89 | – |
Wet
Why this score
| Source | Signature HP | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 30 | 77 |
| SimpleTire owners | 91 | – |
Comfort
Why this score
| Source | Signature HP | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 70 | 88 |
| SimpleTire owners | 91 | – |
Treadwear
Why this score
| Source | Signature HP | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 75 | 75 |
| SimpleTire owners | 91 | – |
Handling
Why this score
| Source | Signature HP | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 65 | 90 |
Scores at a glance
| Category | Dunlop Signature HP | Pirelli Diablo Rosso III |
|---|---|---|
| Relative Score | 58 | 82 |
| Dry | 60 | 90 |
| Wet | 30 | 77 |
| Comfort | 70 | 88 |
| Treadwear | 75 | 75 |
| Handling | 65 | 90 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Tire A
Tire B
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Dunlop Signature HP receives mixed feedback, with users divided between its impressive longevity and concerns regarding ride quality and material durability. While some owners appreciate the tire's handling and wear characteristics, others report issues with sidewall integrity and increased road noise.
Pros
- Excellent tread life and durability
- Responsive and predictable handling
- Quiet operation under normal driving conditions
Cons
- Stiffer, less comfortable ride quality
- Potential for premature sidewall cracking
- Increased road noise compared to premium alternatives
Observations
- Users noted that the harder rubber compound contributes to long-term wear but sacrifices ride comfort.
- Proper maintenance, including alignment and pressure, is frequently cited as essential to mitigating handling deficiencies.
The Pirelli Diablo Rosso III is widely regarded as a high-performance sport tire that excels in providing predictable grip, excellent feedback, and confidence-inspiring wet-weather handling. While users consistently praise its agility and performance on twisty roads, there is a notable divide regarding tread longevity, with some riders experiencing rapid wear compared to more specialized track-focused or touring alternatives.
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
- High level of rider feedback and stability under heavy braking
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
Observations
- Sportbike riders (Ducati 959 Panigale, Yamaha R1) report high satisfaction with the tire's ability to handle aggressive cornering and track-day usage.
- Users transitioning from touring-oriented tires (e.g., Scorpion Trail) to the Rosso III note a significant increase in agility and cornering capability, though at the expense of touring longevity.
Specs side by side
| Attribute | A · Dunlop Signature HP | B · Pirelli Diablo Rosso III |
|---|---|---|
| Category | All Season Ultra High Performance tires | Summer Max Performance tires |
| Vehicle type | Passenger Car / Crossover | Motorcycle |
| Tread depth | 10/32″ | — |
| UTQG | 500 A A | — |
| Treadwear warranty | 45,000 mi | — |
| Sidewall | Blackwall | — |
| Max pressure | 50 psi | — |
Which one should you actually buy?
Dunlop
Pirelli
Winner: Pirelli Diablo Rosso III — better wet, dry and handling. It leads or ties in every category we score.
Pirelli Diablo Rosso III scores 77 vs 30 on wet.
Pirelli Diablo Rosso III scores 90 vs 60 on dry.
Pirelli Diablo Rosso III scores 90 vs 65 on handling.
Pirelli Diablo Rosso III scores 88 vs 70 on comfort.
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.
Community buzz from Reddit and forums is shown for context only — it never changes the score.