Tests – · none yet Owners 63 · 12 reviews
Head-to-head
Updated
Avon Storm 3D XM 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 12 + 19 owner reviews. How we score
Pilot Road 4 is ahead, 74–64
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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.
-
65
Dry
Pilot Road 4 +873Why this score
Source Storm 3D XM Pilot Road 4 Professional tests (TWG score) ≈ 66 (est.) ≈ 71 (est.) Reviews found online 63 76 Storm 3D XM: 60% × 65.8 (est.) + 40% × 62.7 = 65
Pilot Road 4: 60% × 71.3 (est.) + 40% × 76.1 = 73
No road tests of dry for Storm 3D XM. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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 0.42).
-
63
Wet
Pilot Road 4 +1578Why this score
Source Storm 3D XM Pilot Road 4 Professional tests (TWG score) ≈ 65 (est.) ≈ 76 (est.) Reviews found online 60 81 Storm 3D XM: 60% × 64.9 (est.) + 40% × 60.1 = 63
Pilot Road 4: 60% × 76.2 (est.) + 40% × 80.6 = 78
No road tests of wet for Storm 3D XM. 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).
-
64
Comfort
Pilot Road 4 +973Why this score
Source Storm 3D XM Pilot Road 4 Professional tests (TWG score) ≈ 67 (est.) ≈ 70 (est.) Reviews found online 62 75 Storm 3D XM: 40% × 67.4 (est.) + 60% × 62.1 = 64
Pilot Road 4: 40% × 70 (est.) + 60% × 74.8 = 73
No road tests of comfort for Storm 3D XM. 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).
-
68
Treadwear
Pilot Road 4 +270Why this score
Source Storm 3D XM Pilot Road 4 Professional tests (TWG score) ≈ 67 (est.) ≈ 69 (est.) Reviews found online 68 73 Storm 3D XM: 60% × 67.2 (est.) + 40% × 68.3 = 68
Pilot Road 4: 60% × 68.7 (est.) + 40% × 72.7 = 70
No road tests of treadwear for Storm 3D XM. 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).
-
59
Handling (owners)
Pilot Road 4 +1675Why this score
Source Storm 3D XM Pilot Road 4 Reviews found online 59 75
Scores at a glance
| Category | Avon Storm 3D XM | Michelin Pilot Road 4 |
|---|---|---|
| Relative Score | 64 | 74 |
| Dry | 65 | 73 |
| Wet | 63 | 78 |
| Comfort | 64 | 73 |
| Treadwear | 68 | 70 |
| Handling (owners) | 59 | 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
NotLessNeutralImportantMost
Recomputed
Headline score
64
/ 100
Storm 3D XM
74
/ 100
Pilot Road 4
The professional test results behind the scores
Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.
In the overall rankings of 1 tests that ran both, Avon Storm 3D XM finished ahead 0 times and Michelin Pilot Road 4 1 times.
| Discipline | Category | Storm 3D XM | Pilot Road 4 | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #7/7 | #1/7 | – | 0–1 in 1 shared test Newest: 2014 Motorrad Premium Touring Motorcycle Tyre Test · 190/55 R17 |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Storm 3D XM
Pros
- High mileage and tread longevity
- Strong dry-weather grip and stability
- Excellent value for money compared to premium alternatives
Cons
- Inconsistent wet-weather performance and lack of confidence
- Vague front-end feedback and 'squirming' sensation
- Tendency to track road grooves and imperfections
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
Specs side by side
| Attribute | A · Avon Storm 3D XM | B · Michelin Pilot Road 4 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Motorcycle | Motorcycle |
Which one should you actually buy?
64
/ 100
Avon Storm 3D XM
74
/ 100
Michelin Pilot Road 4
Winner: Michelin Pilot Road 4 — better handling, wet and comfort. It leads or ties in every category we score. Avon Storm 3D XM rests on little evidence so far (0 tests, 12 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
You enjoy sharp, responsive handling
Michelin Pilot Road 4 scores 75 vs 59 on handling.
Pick tire B
Your priority is wet-weather safety
Michelin Pilot Road 4 scores 78 vs 63 on wet.
Pick tire B
You want the most comfortable ride
Michelin Pilot Road 4 scores 73 vs 64 on comfort.
Pick tire B
You want the most grip on dry roads
Michelin Pilot Road 4 scores 73 vs 65 on dry.
Tire A · Avon Storm 3D XM
Tire B · Michelin Pilot Road 4
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Storm 3D XM or Pilot Road 4?
Which is better in the wet, Storm 3D XM or Pilot Road 4?
Michelin Pilot Road 4, 78 vs 63 on our wet score.
Which grips better on dry roads, Storm 3D XM or Pilot Road 4?
Michelin Pilot Road 4, 73 vs 65 on our dry score.
Which is more comfortable, Storm 3D XM or Pilot Road 4?
Michelin Pilot Road 4, 73 vs 64 on our comfort score.
Which lasts longer, Storm 3D XM or Pilot Road 4?
Neither, by our numbers: 68 vs 70 on the treadwear score, within 3 points.
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