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Head-to-head Updated

Bridgestone Battlax Hypersport S21 vs Dunlop RoadSmart III — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

RoadSmart III leads, 77–76 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.

  1. 79

    Dry

    Battlax Hypersport S21 +3
    76
    Why this score
    SourceBattlax Hypersport S21RoadSmart III
    Professional tests (TWG score)–72
    Reviews found online8682
  2. 78

    Wet

    RoadSmart III +1
    79
    Why this score
    SourceBattlax Hypersport S21RoadSmart III
    Reviews found online8183
  3. 74

    Comfort

    Level
    74
    Why this score
    SourceBattlax Hypersport S21RoadSmart III
    Reviews found online7979
  4. 64

    Treadwear

    RoadSmart III +8
    72
    Why this score
    SourceBattlax Hypersport S21RoadSmart III
    Reviews found online6477
  5. 86

    Handling

    Battlax Hypersport S21 +3
    83
    Why this score
    SourceBattlax Hypersport S21RoadSmart III
    Reviews found online8683
Scores at a glance
CategoryBridgestone Battlax Hypersport S21Dunlop RoadSmart III
Relative Score 76 77
Dry 79 76
Wet 78 79
Comfort 74 74
Treadwear 64 72
Handling 86 83

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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Less important
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Recomputed
Headline score

Battlax Hypersport S21

RoadSmart III

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
All owner themes in the Battlax Hypersport S21 review

Tire B RoadSmart III

Pros

  • Exceptional tread life and mileage compared to dedicated sport tires.
  • Sharp, responsive steering and handling characteristics.
  • Consistent and reliable grip in both dry and wet road conditions.

Cons

  • Occasional reports of rear-end slippage during aggressive cornering with power input.
  • Front tire wear can be uneven or faster than expected depending on suspension setup.
  • Some users noted a firm ride quality due to the stiff carcass construction.
All owner themes in the RoadSmart III review

Specs side by side

Attribute A · Bridgestone Battlax Hypersport S21 B · Dunlop RoadSmart III
CategorySummerSummer
Vehicle typeMotorcycleMotorcycle

Which one should you actually buy?

Bridgestone Battlax Hypersport S21

Dunlop RoadSmart III

Too close to call: Bridgestone Battlax Hypersport S21 and Dunlop RoadSmart III are within 2 points overall. Bridgestone Battlax Hypersport S21 is stronger on dry and handling. Dunlop RoadSmart III is stronger on treadwear.

Pick tire B You want the longest tread life

Dunlop RoadSmart III scores 72 vs 64 on treadwear.

Pick tire A You want the most grip on dry roads

Bridgestone Battlax Hypersport S21 scores 79 vs 76 on dry.

Pick tire A You enjoy sharp, responsive handling

Bridgestone Battlax Hypersport S21 scores 86 vs 83 on handling.

Tire A · Bridgestone Battlax Hypersport S21
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Tire B · Dunlop RoadSmart III
Check price on Amazon

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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.

77

Narrow edge

RoadSmart III

Amazon