Tests – · none yet Owners 78 · 7 reviews
Bridgestone Battlax Hypersport S21 vs Pirelli Diablo Rosso — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Battlax Hypersport S21 is ahead, 76–52
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Tests – · none yet Owners 46 · 5 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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79
Dry
Battlax Hypersport S21 +2554Why this score
Source Battlax Hypersport S21 Diablo Rosso Reviews found online 86 47 -
78
Wet
Battlax Hypersport S21 +3444Why this score
Source Battlax Hypersport S21 Diablo Rosso Reviews found online 81 36 -
74
Comfort
Battlax Hypersport S21 +1361Why this score
Source Battlax Hypersport S21 Diablo Rosso Reviews found online 79 53 -
64
Treadwear
Battlax Hypersport S21 +559Why this score
Source Battlax Hypersport S21 Diablo Rosso Reviews found online 64 54 -
86
Handling
Battlax Hypersport S21 +3848Why this score
Source Battlax Hypersport S21 Diablo Rosso Reviews found online 86 48
Scores at a glance
| Category | Bridgestone Battlax Hypersport S21 | Pirelli Diablo Rosso |
|---|---|---|
| Relative Score | 76 | 52 |
| Dry | 79 | 54 |
| Wet | 78 | 44 |
| Comfort | 74 | 61 |
| Treadwear | 64 | 59 |
| Handling | 86 | 48 |
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
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
Pros
- Excellent grip and handling in warm, dry conditions
- Predictable and neutral steering characteristics
- Strong performance on smaller displacement vehicles and scooters
Cons
- Sudden and unpredictable loss of traction in cold or wet conditions
- Poor performance and safety concerns during rain
- Inconsistent tread wear patterns
Specs side by side
| Attribute | A · Bridgestone Battlax Hypersport S21 | B · Pirelli Diablo Rosso |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
Bridgestone Battlax Hypersport S21
Pirelli Diablo Rosso
Winner: Bridgestone Battlax Hypersport S21 — better handling, wet and dry. It leads or ties in every category we score.
Bridgestone Battlax Hypersport S21 scores 86 vs 48 on handling.
Bridgestone Battlax Hypersport S21 scores 78 vs 44 on wet.
Bridgestone Battlax Hypersport S21 scores 79 vs 54 on dry.
Bridgestone Battlax Hypersport S21 scores 74 vs 61 on comfort.
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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.