Tests – · none yet Owners 74 · 7 reviews
Head-to-head
Updated
Bridgestone Battlax Hypersport S21 vs Michelin Power GP — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 0 road tests and 7 + 6 owner reviews. How we score
Power GP leads, 77–74 Narrow edge
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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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77
Dry
Power GP +279Why this score
Source Battlax Hypersport S21 Power GP Professional tests (TWG score) ≈ 73 (est.) ≈ 75 (est.) Reviews found online 81 86 Battlax Hypersport S21: 60% × 73.4 (est.) + 40% × 81.3 = 77
Power GP: 60% × 75.2 (est.) + 40% × 85.6 = 79
No road tests of dry for Battlax Hypersport S21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
No road tests of dry for Power GP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
-
76
Wet
Power GP +177Why this score
Source Battlax Hypersport S21 Power GP Professional tests (TWG score) ≈ 75 (est.) ≈ 76 (est.) Reviews found online 78 80 Battlax Hypersport S21: 60% × 74.6 (est.) + 40% × 77.9 = 76
Power GP: 60% × 75.5 (est.) + 40% × 79.5 = 77
No road tests of wet for Battlax Hypersport S21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
No road tests of wet for Power GP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
-
72
Comfort
Power GP +577Why this score
Source Battlax Hypersport S21 Power GP Professional tests (TWG score) ≈ 70 (est.) ≈ 71 (est.) Reviews found online 74 81 Battlax Hypersport S21: 40% × 69.7 (est.) + 60% × 73.8 = 72
Power GP: 40% × 71.1 (est.) + 60% × 81.1 = 77
No road tests of comfort for Battlax Hypersport S21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for Power GP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
-
63
Treadwear
Power GP +972Why this score
Source Battlax Hypersport S21 Power GP Professional tests (TWG score) ≈ 64 (est.) ≈ 70 (est.) Reviews found online 60 75 Battlax Hypersport S21: 60% × 64.3 (est.) + 40% × 60.4 = 63
Power GP: 60% × 69.7 (est.) + 40% × 75.4 = 72
No road tests of treadwear for Battlax Hypersport S21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
No road tests of treadwear for Power GP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
-
82
Handling (owners)
Power GP +385Why this score
Source Battlax Hypersport S21 Power GP Reviews found online 82 85
Scores at a glance
| Category | Bridgestone Battlax Hypersport S21 | Michelin Power GP |
|---|---|---|
| Relative Score | 74 | 77 |
| Dry | 77 | 79 |
| Wet | 76 | 77 |
| Comfort | 72 | 77 |
| Treadwear | 63 | 72 |
| Handling (owners) | 82 | 85 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
74
/ 100
Battlax Hypersport S21
77
/ 100
Power GP
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 Power GP
Pros
- Rapid warm-up time providing immediate confidence
- Exceptional dry grip and predictable feedback
- Superior performance in damp or wet conditions compared to competitors
Cons
- Limited tread life, with some users reporting replacement intervals between 5,000 and 6,000 kilometers
- Potential for uneven wear or cupping on the tire edges
- High performance focus may not suit riders prioritizing maximum longevity
Specs side by side
| Attribute | A · Bridgestone Battlax Hypersport S21 | B · Michelin Power GP |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
74
/ 100
Bridgestone Battlax Hypersport S21
77
/ 100
Michelin Power GP
Narrow edge: Michelin Power GP — better treadwear and comfort. It leads or ties in every category we score. Bridgestone Battlax Hypersport S21 rests on little evidence so far (0 tests, 7 reviews), so read this result as provisional. Michelin Power GP rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional.
Pick tire B
You want the longest tread life
Michelin Power GP scores 72 vs 63 on treadwear.
Pick tire B
You want the most comfortable ride
Michelin Power GP scores 77 vs 72 on comfort.
Tire A · Bridgestone Battlax Hypersport S21
Tire B · Michelin Power GP
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Battlax Hypersport S21 or Power GP?
Which is better in the wet, Battlax Hypersport S21 or Power GP?
Neither, by our numbers: 76 vs 77 on the wet score, within 3 points.
Which grips better on dry roads, Battlax Hypersport S21 or Power GP?
Neither, by our numbers: 77 vs 79 on the dry score, within 3 points.
Which is more comfortable, Battlax Hypersport S21 or Power GP?
Michelin Power GP, 77 vs 72 on our comfort score.
Which lasts longer, Battlax Hypersport S21 or Power GP?
Michelin Power GP, 72 vs 63 on our treadwear score.
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.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology