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Bridgestone Battlax BT 021 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Bridgestone Battlax BT 021 vs Michelin Pilot Road 4 — 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 10 + 19 owner reviews. How we score

Pilot Road 4 is ahead, 74–67

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Michelin Pilot Road 4
Tire BMichelin

Pilot Road 4

Summer

± 8Provisional

Tests – · none yet Owners 76 · 19 reviews

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 68

    Dry

    Pilot Road 4 +5
    73
    Why this score
    SourceBattlax BT 021Pilot Road 4
    Professional tests (TWG score)≈ 68 (est.)≈ 71 (est.)
    Reviews found online6876

    Battlax BT 021: 60% × 67.9 (est.) + 40% × 67.9 = 68

    Pilot Road 4: 60% × 71.3 (est.) + 40% × 76.1 = 73

    No road tests of dry for Battlax BT 021. 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 Pilot Road 4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 67

    Wet

    Pilot Road 4 +11
    78
    Why this score
    SourceBattlax BT 021Pilot Road 4
    Professional tests (TWG score)≈ 68 (est.)≈ 76 (est.)
    Reviews found online6681

    Battlax BT 021: 60% × 68.1 (est.) + 40% × 65.9 = 67

    Pilot Road 4: 60% × 76.1 (est.) + 40% × 80.5 = 78

    No road tests of wet for Battlax BT 021. 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 Pilot Road 4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 66

    Comfort

    Pilot Road 4 +7
    73
    Why this score
    SourceBattlax BT 021Pilot Road 4
    Professional tests (TWG score)≈ 68 (est.)≈ 70 (est.)
    Reviews found online6475

    Battlax BT 021: 40% × 67.8 (est.) + 60% × 64.4 = 66

    Pilot Road 4: 40% × 69.9 (est.) + 60% × 74.8 = 73

    No road tests of comfort for Battlax BT 021. 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 Pilot Road 4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  4. 66

    Treadwear

    Pilot Road 4 +4
    70
    Why this score
    SourceBattlax BT 021Pilot Road 4
    Professional tests (TWG score)≈ 66 (est.)≈ 69 (est.)
    Reviews found online6673

    Battlax BT 021: 60% × 66.3 (est.) + 40% × 65.8 = 66

    Pilot Road 4: 60% × 68.8 (est.) + 40% × 72.7 = 70

    No road tests of treadwear for Battlax BT 021. 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 Pilot Road 4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  5. 65

    Handling (owners)

    Pilot Road 4 +10
    75
    Why this score
    SourceBattlax BT 021Pilot Road 4
    Reviews found online6575
Scores at a glance
CategoryBridgestone Battlax BT 021Michelin Pilot Road 4
Relative Score 67 74
Dry 68 73
Wet 67 78
Comfort 66 73
Treadwear 66 70
Handling (owners) 65 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 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
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Recomputed
Headline score
± 8

Battlax BT 021

± 8

Pilot Road 4

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Battlax BT 021

Pros

  • Exceptional tread longevity and durability for high-mileage commuters
  • Reliable performance for motorway and long-distance riding
  • Strong grip characteristics when tire pressures are correctly calibrated

Cons

  • Handling characteristics can feel unpredictable or heavy if pressures are not perfectly matched to the bike
  • Reports of poor wet-weather grip and lack of rider feedback
  • Tendency for the center of the tire to flatten out significantly during high-mileage motorway use
All owner themes in the Battlax BT 021 review

Tire B 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
All owner themes in the Pilot Road 4 review

Specs side by side

Attribute A · Bridgestone Battlax BT 021 B · Michelin Pilot Road 4
CategorySummerSummer
Vehicle typeMotorcycleMotorcycle

Which one should you actually buy?

Bridgestone Battlax BT 021

Michelin Pilot Road 4

Winner: Michelin Pilot Road 4 — better wet, handling and comfort. It leads or ties in every category we score. Bridgestone Battlax BT 021 rests on little evidence so far (0 tests, 10 reviews), so read this result as provisional. Michelin Pilot Road 4 rests on little evidence so far (0 tests, 19 reviews), so read this result as provisional.

Pick tire B Your priority is wet-weather safety

Michelin Pilot Road 4 scores 78 vs 67 on wet.

Pick tire B You enjoy sharp, responsive handling

Michelin Pilot Road 4 scores 75 vs 65 on handling.

Pick tire B You want the most comfortable ride

Michelin Pilot Road 4 scores 73 vs 66 on comfort.

Pick tire B You want the most grip on dry roads

Michelin Pilot Road 4 scores 73 vs 68 on dry.

Tire A · Bridgestone Battlax BT 021
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Tire B · Michelin Pilot Road 4
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Battlax BT 021 or Pilot Road 4?

Which is better in the wet, Battlax BT 021 or Pilot Road 4?

Michelin Pilot Road 4, 78 vs 67 on our wet score.

Which grips better on dry roads, Battlax BT 021 or Pilot Road 4?

Michelin Pilot Road 4, 73 vs 68 on our dry score.

Which is more comfortable, Battlax BT 021 or Pilot Road 4?

Michelin Pilot Road 4, 73 vs 66 on our comfort score.

Which lasts longer, Battlax BT 021 or Pilot Road 4?

Michelin Pilot Road 4, 70 vs 66 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