tirewheelguide
Head-to-head Updated

Pirelli Diablo Rosso II vs Pirelli Diablo Rosso IV — 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 + 1 road tests and 19 + 181 owner reviews. How we score

Diablo Rosso IV is ahead, 80–73

Check price on Amazon · Diablo Rosso IV or Diablo Rosso II on Amazon
Add your size for an exact match
/R

Both Amazon links then search this exact size.

TireWheelGuide may earn a commission from purchases made through these links.

Pirelli Diablo Rosso IV
Tire BPirelli

Diablo Rosso IV

Summer

± 7

Tests 75 · 1 test Owners 85 · 181 reviews

Best test result: #5 of 12 in 2025 Sport and Hypersport Motorcycle Tyre Test (wet handling)

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 75

    Dry

    Diablo Rosso IV +2
    77
    Why this score
    SourceDiablo Rosso IIDiablo Rosso IV
    Professional tests (TWG score) · – / 1 tests≈ 73 (est.)68
    Reviews found online7992

    Diablo Rosso II: 60% × 72.7 (est.) + 40% × 79 = 75

    Diablo Rosso IV: 60% × 67.8 + 40% × 91.9 = 77

    No road tests of dry for Diablo Rosso II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 72

    Wet

    Diablo Rosso IV +12
    84
    Why this score
    SourceDiablo Rosso IIDiablo Rosso IV
    Professional tests (TWG score) · – / 1 tests≈ 72 (est.)82
    Reviews found online7387

    Diablo Rosso II: 60% × 71.9 (est.) + 40% × 72.9 = 72

    Diablo Rosso IV: 60% × 81.7 + 40% × 87.1 = 84

    No road tests of wet for Diablo Rosso II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 74

    Comfort

    Diablo Rosso IV +6
    80
    Why this score
    SourceDiablo Rosso IIDiablo Rosso IV
    Professional tests (TWG score)≈ 70 (est.)≈ 72 (est.)
    Reviews found online7685

    Diablo Rosso II: 40% × 70.3 (est.) + 60% × 75.7 = 74

    Diablo Rosso IV: 40% × 72.1 (est.) + 60% × 85.3 = 80

    No road tests of comfort for Diablo Rosso II or Diablo Rosso IV. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  4. 66

    Treadwear

    Diablo Rosso IV +5
    71
    Why this score
    SourceDiablo Rosso IIDiablo Rosso IV
    Professional tests (TWG score)≈ 66 (est.)≈ 69 (est.)
    Reviews found online6774

    Diablo Rosso II: 60% × 66.3 (est.) + 40% × 66.7 = 66

    Diablo Rosso IV: 60% × 69 (est.) + 40% × 74.4 = 71

    No road tests of treadwear for Diablo Rosso II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

    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 0.35).

  5. 78

    Handling (owners)

    Diablo Rosso IV +13
    91
    Why this score
    SourceDiablo Rosso IIDiablo Rosso IV
    Reviews found online7891
Scores at a glance
CategoryPirelli Diablo Rosso IIPirelli Diablo Rosso IV
Relative Score 73 80
Dry 75 77
Wet 72 84
Comfort 74 80
Treadwear 66 71
Handling (owners) 78 91

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
± 8

Diablo Rosso II

± 7

Diablo Rosso IV

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Diablo Rosso II

Pros

  • Exceptional dry-weather grip and cornering stability
  • Rapid warm-up time for immediate performance
  • Predictable handling and high levels of rider feedback

Cons

  • Inconsistent tread life, with reports of rapid center wear and cupping
  • Polarized wet-weather performance ranging from 'glue-like' to 'dangerous'
  • Tendency for the rear tire to square off over time
All owner themes in the Diablo Rosso II review

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
All owner themes in the Diablo Rosso IV review

Specs side by side

Attribute A · Pirelli Diablo Rosso II B · Pirelli Diablo Rosso IV
CategorySummerSummer
Vehicle typeMotorcycleMotorcycle

Which one should you actually buy?

Pirelli Diablo Rosso II

Pirelli Diablo Rosso IV

Winner: Pirelli Diablo Rosso IV — better handling, wet and comfort. It leads or ties in every category we score. Pirelli Diablo Rosso II rests on little evidence so far (0 tests, 19 reviews), so read this result as provisional.

Pick tire B You enjoy sharp, responsive handling

Pirelli Diablo Rosso IV scores 91 vs 78 on handling.

Pick tire B Your priority is wet-weather safety

Pirelli Diablo Rosso IV scores 84 vs 72 on wet.

Pick tire B You want the most comfortable ride

Pirelli Diablo Rosso IV scores 80 vs 74 on comfort.

Pick tire B You want the longest tread life

Pirelli Diablo Rosso IV scores 71 vs 66 on treadwear.

Tire A · Pirelli Diablo Rosso II
Check price on Amazon
Tire B · Pirelli Diablo Rosso IV
Check price on Amazon

TireWheelGuide may earn a commission from purchases made through these links.

Diablo Rosso II or Diablo Rosso IV?

Which is better in the wet, Diablo Rosso II or Diablo Rosso IV?

Pirelli Diablo Rosso IV, 84 vs 72 on our wet score.

Which grips better on dry roads, Diablo Rosso II or Diablo Rosso IV?

Neither, by our numbers: 75 vs 77 on the dry score, within 3 points.

Which is more comfortable, Diablo Rosso II or Diablo Rosso IV?

Pirelli Diablo Rosso IV, 80 vs 74 on our comfort score.

Which lasts longer, Diablo Rosso II or Diablo Rosso IV?

Pirelli Diablo Rosso IV, 71 vs 66 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