Tests – · none yet Owners 46 · 79 reviews
Head-to-head
Updated
Bridgestone Potenza S001 RFT vs Pirelli P Zero PZ4 Run Flat — 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 79 + 0 owner reviews. How we score
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Tests – · none yet Owners – · none yet
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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54
Dry
No comparison–Why this score
Source Potenza S001 RFT P Zero PZ4 Run Flat Professional tests (TWG score) ≈ 59 (est.) – Reviews found online 47 – Potenza S001 RFT: 60% × 59.3 (est.) + 40% × 47.2 = 54
No road tests of dry for Potenza S001 RFT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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58
Wet
No comparison–Why this score
Source Potenza S001 RFT P Zero PZ4 Run Flat Professional tests (TWG score) ≈ 61 (est.) – Reviews found online 53 – Potenza S001 RFT: 60% × 61.1 (est.) + 40% × 53.2 = 58
No road tests of wet for Potenza S001 RFT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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41
Snow
No comparison–Why this score
Source Potenza S001 RFT P Zero PZ4 Run Flat Professional tests (TWG score) ≈ 53 (est.) – Reviews found online 23 – Potenza S001 RFT: 60% × 52.8 (est.) + 40% × 22.8 = 41
No road tests of snow for Potenza S001 RFT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
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46
Comfort
No comparison–Why this score
Source Potenza S001 RFT P Zero PZ4 Run Flat Professional tests (TWG score) ≈ 63 (est.) – Reviews found online 35 – Potenza S001 RFT: 40% × 62.8 (est.) + 60% × 34.6 = 46
No road tests of comfort for Potenza S001 RFT. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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61
Noise
No comparison–Why this score
Source Potenza S001 RFT P Zero PZ4 Run Flat Professional tests (TWG score) ≈ 67 (est.) – Reviews found online 53 – Potenza S001 RFT: 60% × 66.6 (est.) + 40% × 52.8 = 61
No road tests of noise for Potenza S001 RFT. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
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58
Treadwear
No comparison–Why this score
Source Potenza S001 RFT P Zero PZ4 Run Flat Professional tests (TWG score) ≈ 61 (est.) – Reviews found online 53 – Potenza S001 RFT: 60% × 61.5 (est.) + 40% × 52.7 = 58
No road tests of treadwear for Potenza S001 RFT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
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49
Handling (owners)
No comparison–Why this score
Source Potenza S001 RFT P Zero PZ4 Run Flat Reviews found online 49 –
Scores at a glance
| Category | Bridgestone Potenza S001 RFT | Pirelli P Zero PZ4 Run Flat |
|---|---|---|
| Relative Score | 53 | – |
| Dry | 54 | – |
| Wet | 58 | – |
| Snow | 41 | – |
| Comfort | 46 | – |
| Noise | 61 | – |
| Treadwear | 58 | – |
| Handling (owners) | 49 | – |
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
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
53
/ 100
Potenza S001 RFT
–
/ 100
P Zero PZ4 Run Flat
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Potenza S001 RFT
Pros
- Exceptional tread life and durability
- Precise steering feedback and handling responsiveness
- Strong dry-road grip
Cons
- Poor wet-weather traction and hydroplaning resistance
- High levels of road noise and cabin vibration
- Harsh, stiff ride quality over road imperfections
Tire B P Zero PZ4 Run Flat
Not enough owner reviews yet to extract themes.
Specs side by side
| Attribute | A · Bridgestone Potenza S001 RFT | B · Pirelli P Zero PZ4 Run Flat |
|---|---|---|
| Category | Summer | Summer tire |
| Vehicle type | Passenger Car / Crossover | — |
| Sizes available | 14 | — |
| Rim diameters | 17″ – 21″ | — |
| Tread depth | 9/32″ | — |
| UTQG | 280 A A | — |
| Sidewall | Blackwall | — |
| Max pressure | 51 psi | — |
Which one should you actually buy?
53
/ 100
Bridgestone Potenza S001 RFT
–
/ 100
Pirelli P Zero PZ4 Run Flat
Only Bridgestone Potenza S001 RFT has enough test and review data for a Relative Score, so there is no head-to-head winner yet.
Tire A · Bridgestone Potenza S001 RFT
Tire B · Pirelli P Zero PZ4 Run Flat
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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.
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