Tests – · none yet Owners 67 · 1 review
Head-to-head
Updated
Dunlop GP Racer D212 vs Pirelli Diablo Rosso IV — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
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Tests 74 · 1 test Owners 79 · 177 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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Dry
No comparison76Why this score
Source GP Racer D212 Diablo Rosso IV Professional tests (TWG score) – 68 Reviews found online – 87 -
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Wet
No comparison79Why this score
Source GP Racer D212 Diablo Rosso IV Professional tests (TWG score) – 79 Reviews found online – 80 -
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Comfort
No comparison75Why this score
Source GP Racer D212 Diablo Rosso IV Reviews found online – 81 -
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Treadwear
No comparison66Why this score
Source GP Racer D212 Diablo Rosso IV Reviews found online – 66 -
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Handling
No comparison87Why this score
Source GP Racer D212 Diablo Rosso IV Reviews found online – 87
Scores at a glance
| Category | Dunlop GP Racer D212 | Pirelli Diablo Rosso IV |
|---|---|---|
| Relative Score | – | 76 |
| Dry | – | 76 |
| Wet | – | 79 |
| Comfort | – | 75 |
| Treadwear | – | 66 |
| Handling | – | 87 |
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.
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Recomputed
Headline score
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/ 100
GP Racer D212
76
/ 100
Diablo Rosso IV
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A GP Racer D212
Pros
- Exceptional mechanical grip compared to standard road tires
- High-performance handling and agility for deep lean angles
- Precise turn-in characteristics
Cons
- High purchase price
- Limited longevity compared to touring-oriented rubber
Tire B Diablo Rosso IV
Pros
- Exceptional dry and wet grip with a high level of rider confidence
- Fast warm-up time and predictable handling at deep lean angles
- Improved steering precision and turn-in compared to previous generations like the Diablo Rosso III
Cons
- Higher price point compared to some competitors and previous models
- Noticeable reduction in grip and increased rear wheel spin as the tires wear down
- Requires full operating temperature for optimal performance late in its life cycle
Specs side by side
| Attribute | A · Dunlop GP Racer D212 | B · Pirelli Diablo Rosso IV |
|---|---|---|
| Category | Summer Trackday and Competition tires | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
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/ 100
Dunlop GP Racer D212
76
/ 100
Pirelli Diablo Rosso IV
Only Pirelli Diablo Rosso IV has enough test and review data for a Relative Score, so there is no head-to-head winner yet.
Tire A · Dunlop GP Racer D212
Tire B · Pirelli Diablo Rosso IV
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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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.