94
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
94/100
1,952 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated September 2026
Michelin Pilot Road 4 vs Pirelli Diablo Rosso IV — Compared (September 2026)
Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.
VS
81
/ 100
Objective (60%)
70/100
1 professional test
User signal (40%)
87/100
7 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Michelin Pilot Road 4 — better wet, treadwear and comfort. It leads or ties in every category we score.
Read full
TireWheelGuide may earn a commission from purchases made via links on this page.
Category breakdown
6 categories, side by side
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
Dry
Score (0–100)
Pilot Road 4 leads by 7
Why this score
| Source | Pilot Road 4 | Diablo Rosso IV |
|---|---|---|
| Professional tests (TWG score) | – | 87 |
| Tyre Reviews owners | 85 | 93 |
Wet
Score (0–100)
Pilot Road 4 leads by 22
Why this score
| Source | Pilot Road 4 | Diablo Rosso IV |
|---|---|---|
| Professional tests (TWG score) | – | 67 |
| Tyre Reviews owners | 84 | 79 |
Comfort
Score (0–100)
Pilot Road 4 leads by 8
Why this score
| Source | Pilot Road 4 | Diablo Rosso IV |
|---|---|---|
| Tyre Reviews owners | 84 | 86 |
Noise
Score (0–100)
Treadwear
Score (0–100)
Pilot Road 4 leads by 15
Why this score
| Source | Pilot Road 4 | Diablo Rosso IV |
|---|---|---|
| Tyre Reviews owners | 79 | 76 |
Handling
Score (0–100)
Pilot Road 4 leads by 5
Why this score
| Source | Pilot Road 4 | Diablo Rosso IV |
|---|---|---|
| Tyre Reviews owners | 78 | 91 |
| DriverReviews owners | – | 92 |
Scores at a glance
| Category | Michelin Pilot Road 4 | Pirelli Diablo Rosso IV |
|---|---|---|
| Relative Score | 94 | 81 |
| Dry | 96 | 89 |
| Wet | 94 | 72 |
| Comfort | 94 | 86 |
| Noise | 92 | – |
| Treadwear | 91 | 76 |
| Handling | 96 | 91 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Personalize
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.
Neutral
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Recomputed
Headline score
94
/ 100
Tire A
81
/ 100
Tire B
Only categories both tires have data for count toward the headline score.
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Michelin Pilot Road 4 is widely regarded as a premier all-season tire, particularly praised for its exceptional wet-weather performance and confidence-inspiring handling. While most users appreciate the balance of comfort, longevity, and safety, some high-performance drivers note a lack of sharpness compared to dedicated summer tires, and a subset of users report concerns regarding tread life and road noise.
Pros
- Exceptional wet weather grip and hydroplaning resistance
- High level of comfort and reduced road noise compared to OEM run-flats
- Predictable and stable handling in varied road conditions
- Strong longevity for a performance-oriented tire
Cons
- Increased rolling resistance leading to reduced fuel/battery range in EVs
- Reported inconsistency in tread life across different vehicle types
- Less sharp steering response compared to dedicated summer performance tires
- Occasional reports of higher-than-expected road noise on certain pavement types
Observations
- EV owners, particularly Tesla users, frequently report a noticeable decrease in range (approx. 10-20%) due to higher rolling resistance.
- Motorcycle riders note that the tire requires a significant 'bedding-in' period before reaching optimal grip levels.
- Users replacing factory run-flat tires consistently report a drastic improvement in ride quality and cabin comfort.
The Pirelli Diablo Rosso IV is widely regarded as a top-tier hypersport tire that offers significant improvements in feedback, warm-up time, and lean-angle confidence over its predecessors. While users consistently praise its performance in both wet and dry conditions, the consensus notes that these gains come at a premium price point and with potential longevity trade-offs depending on riding style.
Pros
- Exceptional dry and wet grip with rapid warm-up times.
- High level of precision and confidence at deep lean angles.
- Improved feedback and stability compared to previous generations (DR2/DR3).
- Surprisingly good low-speed stability and handling characteristics.
Cons
- Higher price point compared to competitors and previous models.
- Performance consistency may degrade as the tire reaches the end of its service life.
- Potential for increased wear rates under aggressive riding conditions.
Observations
- Users reported significant improvements in resistance to cupping on smaller displacement bikes (e.g., PCX 125) compared to the Diablo Rosso II.
- Aggressive riders utilizing standard sportbike sizes (120/70 and 190/55) report that the tire maintains performance characteristics comparable to more track-focused compounds like the Rosso Corsa II.
Specifications
Specs side by side
| Attribute | A · Michelin Pilot Road 4 | B · Pirelli Diablo Rosso IV |
|---|---|---|
| Category | Summer Premium Touring tires | Summer Max Performance tires |
| Vehicle type | Motorcycle | Motorcycle |
Final verdict
Which one should you actually buy?
94
/ 100
Michelin
81
/ 100
Pirelli
Winner: Michelin Pilot Road 4 — better wet, treadwear and comfort. It leads or ties in every category we score.
Pick tire A
Your priority is wet-weather safety
Michelin Pilot Road 4 scores 94 vs 72 on wet.
Pick tire A
You want the longest tread life
Michelin Pilot Road 4 scores 91 vs 76 on treadwear.
Pick tire A
You want the most comfortable ride
Michelin Pilot Road 4 scores 94 vs 86 on comfort.
Pick tire A
You want the most grip on dry roads
Michelin Pilot Road 4 scores 96 vs 89 on dry.
Tire A · Michelin Pilot Road 4
Tire B · Pirelli Diablo Rosso IV
More comparisons
Also compared with
Michelin Pilot Road 4 also compared with
Pirelli Diablo Rosso IV also compared with
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.
Community buzz from Reddit and forums is shown for context only — it never changes the score.