Tests – · none yet Owners 78 · 7 reviews
Bridgestone Battlax Hypersport S21 vs Pirelli Diablo Rosso Corsa II — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Battlax Hypersport S21 leads, 76–75 Narrow edge
Add your size for an exact match
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests – · none yet Owners 77 · 5 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
79
Dry
Battlax Hypersport S21 +178Why this score
Source Battlax Hypersport S21 Diablo Rosso Corsa II Reviews found online 86 84 -
78
Wet
Battlax Hypersport S21 +177Why this score
Source Battlax Hypersport S21 Diablo Rosso Corsa II Reviews found online 81 80 -
74
Comfort
Battlax Hypersport S21 +272Why this score
Source Battlax Hypersport S21 Diablo Rosso Corsa II Reviews found online 79 76 -
64
Treadwear
Diablo Rosso Corsa II +165Why this score
Source Battlax Hypersport S21 Diablo Rosso Corsa II Reviews found online 64 64 -
86
Handling
Battlax Hypersport S21 +482Why this score
Source Battlax Hypersport S21 Diablo Rosso Corsa II Reviews found online 86 82
Scores at a glance
| Category | Bridgestone Battlax Hypersport S21 | Pirelli Diablo Rosso Corsa II |
|---|---|---|
| Relative Score | 76 | 75 |
| Dry | 79 | 78 |
| Wet | 78 | 77 |
| Comfort | 74 | 72 |
| Treadwear | 64 | 65 |
| Handling | 86 | 82 |
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.
Battlax Hypersport S21
Diablo Rosso Corsa II
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Battlax Hypersport S21
Pros
- Exceptional dry grip and cornering stability
- Rapid warm-up time
- High performance capability suitable for track days
Cons
- Limited tread longevity
- Rapid wear on the center compound during straight-line riding
- Reduced traction on painted road markings and pedestrian crossings
Tire B Diablo Rosso Corsa II
Pros
- Exceptional dry weather grip and handling feedback
- Rapid warm-up time for immediate performance
- Predictable and confidence-inspiring in wet conditions
Cons
- Short tread life, particularly under aggressive or track-day usage
- Rapid wear rates compared to standard sport-touring alternatives
- High replacement frequency for high-mileage riders
Specs side by side
| Attribute | A · Bridgestone Battlax Hypersport S21 | B · Pirelli Diablo Rosso Corsa II |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
Bridgestone Battlax Hypersport S21
Pirelli Diablo Rosso Corsa II
Too close to call: Bridgestone Battlax Hypersport S21 and Pirelli Diablo Rosso Corsa II are within 2 points overall. Bridgestone Battlax Hypersport S21 is stronger on handling.
Bridgestone Battlax Hypersport S21 scores 86 vs 82 on handling.
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.