Tests – · none yet Owners 77 · 189 reviews
Head-to-head
Updated
Metzeler SPORTEC M7 RR 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 189 + 182 owner reviews. How we score
Diablo Rosso IV leads, 77–75 Narrow edge
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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)
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
77
Dry
SPORTEC M7 RR +275Why this score
Source SPORTEC M7 RR Diablo Rosso IV Professional tests (TWG score) · – / 1 tests ≈ 74 (est.) 68 Reviews found online 82 86 SPORTEC M7 RR: 60% × 73.7 (est.) + 40% × 81.8 = 77
Diablo Rosso IV: 60% × 67.8 + 40% × 86.3 = 75
No road tests of dry for SPORTEC M7 RR. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
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77
Wet
Diablo Rosso IV +582Why this score
Source SPORTEC M7 RR Diablo Rosso IV Professional tests (TWG score) · – / 1 tests ≈ 76 (est.) 81 Reviews found online 80 83 SPORTEC M7 RR: 60% × 75.7 (est.) + 40% × 79.9 = 77
Diablo Rosso IV: 60% × 81.4 + 40% × 82.5 = 82
No road tests of wet for SPORTEC M7 RR. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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75
Comfort
Diablo Rosso IV +176Why this score
Source SPORTEC M7 RR Diablo Rosso IV Professional tests (TWG score) ≈ 71 (est.) ≈ 71 (est.) Reviews found online 79 80 SPORTEC M7 RR: 40% × 70.6 (est.) + 60% × 78.5 = 75
Diablo Rosso IV: 40% × 70.9 (est.) + 60% × 80.1 = 76
No road tests of comfort for SPORTEC M7 RR. 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 IV. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
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67
Treadwear
Diablo Rosso IV +370Why this score
Source SPORTEC M7 RR Diablo Rosso IV Professional tests (TWG score) ≈ 67 (est.) ≈ 68 (est.) Reviews found online 67 71 SPORTEC M7 RR: 60% × 66.8 (est.) + 40% × 67.4 = 67
Diablo Rosso IV: 60% × 68.3 (est.) + 40% × 71.4 = 70
No road tests of treadwear for SPORTEC M7 RR. 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 IV. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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81
Handling (owners)
Diablo Rosso IV +586Why this score
Source SPORTEC M7 RR Diablo Rosso IV Reviews found online 81 86
Scores at a glance
| Category | Metzeler SPORTEC M7 RR | Pirelli Diablo Rosso IV |
|---|---|---|
| Relative Score | 75 | 77 |
| Dry | 77 | 75 |
| Wet | 77 | 82 |
| Comfort | 75 | 76 |
| Treadwear | 67 | 70 |
| Handling (owners) | 81 | 86 |
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
75
/ 100
SPORTEC M7 RR
77
/ 100
Diablo Rosso IV
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A SPORTEC M7 RR
Pros
- Exceptional dry grip and track-level performance when warmed up
- Quick warm-up time and excellent rider confidence
- Predictable handling and reliable front-end feedback
Cons
- Can occasionally break traction in the wet when aggressive power is applied during cornering
- Rear tire longevity can be relatively short (around 3,000 to 3,700 miles) under very spirited or heavy throttle riding
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 · Metzeler SPORTEC M7 RR | B · Pirelli Diablo Rosso IV |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
75
/ 100
Metzeler SPORTEC M7 RR
77
/ 100
Pirelli Diablo Rosso IV
Narrow edge: Pirelli Diablo Rosso IV — better wet and treadwear. Where the Metzeler SPORTEC M7 RR is ahead, it is by less than 3 points.
Pick tire B
Your priority is wet-weather safety
Pirelli Diablo Rosso IV scores 82 vs 77 on wet.
Pick tire B
You want the longest tread life
Pirelli Diablo Rosso IV scores 70 vs 67 on treadwear.
Tire A · Metzeler SPORTEC M7 RR
Tire B · Pirelli Diablo Rosso IV
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SPORTEC M7 RR or Diablo Rosso IV?
Which is better in the wet, SPORTEC M7 RR or Diablo Rosso IV?
Pirelli Diablo Rosso IV, 82 vs 77 on our wet score.
Which grips better on dry roads, SPORTEC M7 RR or Diablo Rosso IV?
Neither, by our numbers: 77 vs 75 on the dry score, within 3 points.
Which is more comfortable, SPORTEC M7 RR or Diablo Rosso IV?
Neither, by our numbers: 75 vs 76 on the comfort score, within 3 points.
Which lasts longer, SPORTEC M7 RR or Diablo Rosso IV?
Pirelli Diablo Rosso IV, 70 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