Tests 75 · 1 test Owners 81 · 182 reviews
Best test result: #5 of 12 in 2025 Sport and Hypersport Motorcycle Tyre Test (wet handling)
Head-to-head
Updated
Pirelli Diablo Rosso IV vs Metzeler SPORTEC M7 RR — 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 1 + 0 road tests and 182 + 189 owner reviews. How we score
Diablo Rosso IV leads, 77–75 Narrow edge
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Tests – · none yet Owners 77 · 189 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
75
Dry
SPORTEC M7 RR +277Why this score
Source Diablo Rosso IV SPORTEC M7 RR Professional tests (TWG score) · 1 / – tests 68 ≈ 74 (est.) Reviews found online 86 82 Diablo Rosso IV: 60% × 67.8 + 40% × 86.3 = 75
SPORTEC M7 RR: 60% × 73.7 (est.) + 40% × 81.8 = 77
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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82
Wet
Diablo Rosso IV +577Why this score
Source Diablo Rosso IV SPORTEC M7 RR Professional tests (TWG score) · 1 / – tests 81 ≈ 76 (est.) Reviews found online 83 80 Diablo Rosso IV: 60% × 81.4 + 40% × 82.5 = 82
SPORTEC M7 RR: 60% × 75.7 (est.) + 40% × 79.9 = 77
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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76
Comfort
Diablo Rosso IV +175Why this score
Source Diablo Rosso IV SPORTEC M7 RR Professional tests (TWG score) ≈ 71 (est.) ≈ 71 (est.) Reviews found online 80 79 Diablo Rosso IV: 40% × 70.9 (est.) + 60% × 80.1 = 76
SPORTEC M7 RR: 40% × 70.6 (est.) + 60% × 78.5 = 75
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).
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).
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70
Treadwear
Diablo Rosso IV +367Why this score
Source Diablo Rosso IV SPORTEC M7 RR Professional tests (TWG score) ≈ 68 (est.) ≈ 67 (est.) Reviews found online 71 67 Diablo Rosso IV: 60% × 68.3 (est.) + 40% × 71.4 = 70
SPORTEC M7 RR: 60% × 66.8 (est.) + 40% × 67.4 = 67
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).
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).
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86
Handling (owners)
Diablo Rosso IV +581Why this score
Source Diablo Rosso IV SPORTEC M7 RR Reviews found online 86 81
Scores at a glance
| Category | Pirelli Diablo Rosso IV | Metzeler SPORTEC M7 RR |
|---|---|---|
| Relative Score | 77 | 75 |
| Dry | 75 | 77 |
| Wet | 82 | 77 |
| Comfort | 76 | 75 |
| Treadwear | 70 | 67 |
| Handling (owners) | 86 | 81 |
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
Diablo Rosso IV
75
/ 100
SPORTEC M7 RR
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A 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
Tire B 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
Specs side by side
| Attribute | A · Pirelli Diablo Rosso IV | B · Metzeler SPORTEC M7 RR |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
77
/ 100
Pirelli Diablo Rosso IV
75
/ 100
Metzeler SPORTEC M7 RR
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 A
Your priority is wet-weather safety
Pirelli Diablo Rosso IV scores 82 vs 77 on wet.
Pick tire A
You want the longest tread life
Pirelli Diablo Rosso IV scores 70 vs 67 on treadwear.
Tire A · Pirelli Diablo Rosso IV
Tire B · Metzeler SPORTEC M7 RR
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Diablo Rosso IV or SPORTEC M7 RR?
Which is better in the wet, Diablo Rosso IV or SPORTEC M7 RR?
Pirelli Diablo Rosso IV, 82 vs 77 on our wet score.
Which grips better on dry roads, Diablo Rosso IV or SPORTEC M7 RR?
Neither, by our numbers: 75 vs 77 on the dry score, within 3 points.
Which is more comfortable, Diablo Rosso IV or SPORTEC M7 RR?
Neither, by our numbers: 76 vs 75 on the comfort score, within 3 points.
Which lasts longer, Diablo Rosso IV or SPORTEC M7 RR?
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