Tests – · none yet Owners 74 · 19 reviews
Best test result: #1 of 7 in 2014 Motorrad Premium Touring Motorcycle Tyre Test (overall ranking)
Head-to-head
Updated
Michelin Pilot Road 4 vs Pirelli Diablo Rosso IV — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Diablo Rosso IV leads, 76–72 Narrow edge
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.
Tests 74 · 1 test Owners 79 · 181 reviews
Best test result: #5 of 12 in 2025 Sport and Hypersport Motorcycle Tyre Test (overall ranking)
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
72
Dry
Diablo Rosso IV +375Why this score
Source Pilot Road 4 Diablo Rosso IV Professional tests (TWG score) – 68 Reviews found online 74 87 -
76
Wet
Diablo Rosso IV +480Why this score
Source Pilot Road 4 Diablo Rosso IV Professional tests (TWG score) – 81 Reviews found online 78 80 -
72
Comfort
Diablo Rosso IV +375Why this score
Source Pilot Road 4 Diablo Rosso IV Reviews found online 74 81 -
68
Treadwear
Pilot Road 4 +266Why this score
Source Pilot Road 4 Diablo Rosso IV Reviews found online 70 66 -
73
Handling
Diablo Rosso IV +1487Why this score
Source Pilot Road 4 Diablo Rosso IV Reviews found online 73 87
Scores at a glance
| Category | Michelin Pilot Road 4 | Pirelli Diablo Rosso IV |
|---|---|---|
| Relative Score | 72 | 76 |
| Dry | 72 | 75 |
| Wet | 76 | 80 |
| Comfort | 72 | 75 |
| Treadwear | 68 | 66 |
| Handling | 73 | 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.
Important
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Less important
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Recomputed
Headline score
72
/ 100
Pilot Road 4
76
/ 100
Diablo Rosso IV
The professional test results behind the scores
Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.
| Discipline | Category | Pilot Road 4 | Diablo Rosso IV | Δ | Both? |
|---|---|---|---|---|---|
| Overall Ranking | Overall | 100% #1/7 · 2014 Motorrad Premium Touring Motorcycle Tyre Test | 20% #5/12 · 2025 Sport and Hypersport Motorcycle Tyre Test | +80.0 | Different tests |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Pilot Road 4
Pros
- Outstanding wet weather grip and performance
- Impressive tread life and mileage longevity for touring and commuting
- Predictable and confident handling in everyday dry and wet conditions
Cons
- Slippery when brand new, requiring a cautious break-in period
- Tread pattern can cause movement or a vague front-end feel in warmer weather
- Some riders experienced uneven wear or quicker wear on the front tire
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 · Michelin Pilot Road 4 | B · Pirelli Diablo Rosso IV |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
72
/ 100
Michelin Pilot Road 4
76
/ 100
Pirelli Diablo Rosso IV
Winner: Pirelli Diablo Rosso IV — better handling, wet and dry. It leads or ties in every category we score.
Pick tire B
You enjoy sharp, responsive handling
Pirelli Diablo Rosso IV scores 87 vs 73 on handling.
Pick tire B
Your priority is wet-weather safety
Pirelli Diablo Rosso IV scores 80 vs 76 on wet.
Pick tire B
You want the most grip on dry roads
Pirelli Diablo Rosso IV scores 75 vs 72 on dry.
Pick tire B
You want the most comfortable ride
Pirelli Diablo Rosso IV scores 75 vs 72 on comfort.
Tire A · Michelin Pilot Road 4
Tire B · Pirelli Diablo Rosso IV
TireWheelGuide may earn a commission from purchases made through these links.
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.