Tests – · none yet Owners 74 · 19 reviews
Head-to-head
Updated
Michelin Pilot Road 4 vs Pirelli Diablo Rosso II — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Pilot Road 4 leads, 72–70 Narrow edge
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Tests – · none yet Owners 71 · 19 reviews
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 II +173Why this score
Source Pilot Road 4 Diablo Rosso II Reviews found online 74 76 -
76
Wet
Pilot Road 4 +670Why this score
Source Pilot Road 4 Diablo Rosso II Reviews found online 78 70 -
72
Comfort
Pilot Road 4 +171Why this score
Source Pilot Road 4 Diablo Rosso II Reviews found online 74 73 -
68
Treadwear
Pilot Road 4 +365Why this score
Source Pilot Road 4 Diablo Rosso II Reviews found online 70 65 -
73
Handling
Diablo Rosso II +275Why this score
Source Pilot Road 4 Diablo Rosso II Reviews found online 73 75
Scores at a glance
| Category | Michelin Pilot Road 4 | Pirelli Diablo Rosso II |
|---|---|---|
| Relative Score | 72 | 70 |
| Dry | 72 | 73 |
| Wet | 76 | 70 |
| Comfort | 72 | 71 |
| Treadwear | 68 | 65 |
| Handling | 73 | 75 |
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.
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Recomputed
Headline score
72
/ 100
Pilot Road 4
70
/ 100
Diablo Rosso II
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 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
Specs side by side
| Attribute | A · Michelin Pilot Road 4 | B · Pirelli Diablo Rosso II |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
72
/ 100
Michelin Pilot Road 4
70
/ 100
Pirelli Diablo Rosso II
Winner: Michelin Pilot Road 4 — better wet and treadwear. It leads or ties in every category we score.
Pick tire A
Your priority is wet-weather safety
Michelin Pilot Road 4 scores 76 vs 70 on wet.
Pick tire A
You want the longest tread life
Michelin Pilot Road 4 scores 68 vs 65 on treadwear.
Tire A · Michelin Pilot Road 4
Tire B · Pirelli Diablo Rosso II
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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.