Tests – · none yet Owners 34 · 146 reviews
Head-to-head
Updated
Bridgestone Potenza RE050A Run Flat vs Falken Azenis FK510 — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 31 road tests and 146 + 907 owner reviews. How we score
Azenis FK510 is ahead, 73–45
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Tests 74 · 31 tests Owners 66 · 907 reviews
Best test result: #1 of 9 in 2018 Sport Auto 19 inch UHP and Track Day Tyre Test (wet braking)
“I have Fallen FK510s and live where it rains 300 days a year, they perform great and I'm sure the 520 is even better”
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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46
Dry
Azenis FK510 +2874Why this score
Source Potenza RE050A Run Flat Azenis FK510 Professional tests (TWG score) · – / 28 tests ≈ 54 (est.) 73 Reviews found online 35 75 Potenza RE050A Run Flat: 60% × 54.4 (est.) + 40% × 34.5 = 46
Azenis FK510: 60% × 72.8 + 40% × 75.4 = 74
No road tests of dry for Potenza RE050A Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
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47
Wet
Azenis FK510 +3683Why this score
Source Potenza RE050A Run Flat Azenis FK510 Professional tests (TWG score) · – / 29 tests ≈ 52 (est.) 88 Reviews found online 39 76 Potenza RE050A Run Flat: 60% × 52.4 (est.) + 40% × 38.7 = 47
Azenis FK510: 60% × 87.6 + 40% × 76.2 = 83
No road tests of wet for Potenza RE050A Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
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–
Snow
No comparison55Why this score
Source Potenza RE050A Run Flat Azenis FK510 Professional tests (TWG score) – ≈ 61 (est.) Reviews found online – 44 Azenis FK510: 60% × 61.4 (est.) + 40% × 44.3 = 55
No road tests of snow for Azenis FK510. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
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42
Comfort
Azenis FK510 +1052Why this score
Source Potenza RE050A Run Flat Azenis FK510 Professional tests (TWG score) · – / 6 tests ≈ 60 (est.) 42 Reviews found online 15 68 Potenza RE050A Run Flat: 60% × 59.7 (est.) + 40% × 14.8 = 42
Azenis FK510: 60% × 41.7 + 40% × 68.2 = 52
No road tests of comfort for Potenza RE050A Run Flat. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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–
Noise
No comparison67Why this score
Source Potenza RE050A Run Flat Azenis FK510 Professional tests (TWG score) · – / 18 tests – 66 Reviews found online – 69 Azenis FK510: 60% × 66 + 40% × 68.7 = 67
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48
Treadwear
Azenis FK510 +1866Why this score
Source Potenza RE050A Run Flat Azenis FK510 Professional tests (TWG score) · – / 5 tests ≈ 56 (est.) 72 Reviews found online 35 57 Potenza RE050A Run Flat: 60% × 56.3 (est.) + 40% × 35.3 = 48
Azenis FK510: 60% × 72.4 + 40% × 57.3 = 66
No road tests of treadwear for Potenza RE050A Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
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29
Handling (owners)
Azenis FK510 +4271Why this score
Source Potenza RE050A Run Flat Azenis FK510 Reviews found online 29 71
Scores at a glance
| Category | Bridgestone Potenza RE050A Run Flat | Falken Azenis FK510 |
|---|---|---|
| Relative Score | 45 | 73 |
| Dry | 46 | 74 |
| Wet | 47 | 83 |
| Snow | – | 55 |
| Comfort | 42 | 52 |
| Noise | – | 67 |
| Treadwear | 48 | 66 |
| Handling (owners) | 29 | 71 |
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
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
45
/ 100
Potenza RE050A Run Flat
73
/ 100
Azenis FK510
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 RE050A Run Flat
Pros
- Strong grip and predictable handling in dry conditions
- Precise steering response and high-speed cornering stability
- Good overall longevity and mileage for certain drivers on smooth highways
Cons
- Extremely harsh, rigid, and uncomfortable ride quality
- Severe tramlining and tendency to follow ruts or road imperfections
- Poor grip, reduced traction, and nervous handling in wet weather
Tire B Azenis FK510
Pros
- Outstanding grip in both wet and dry conditions
- Exceptional value and lower price point compared to premium brands
- Smooth and comfortable ride quality that absorbs road imperfections well
Cons
- Accelerated tread wear and shorter overall lifespan
- Softer sidewalls can result in slightly delayed initial steering response or a feeling of looseness during aggressive high-speed maneuvers
- Occasional reports of increased tire noise or harshness on specific rough or concrete road surfaces
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Bridgestone Potenza RE050A Run Flat
We haven't collected enough community discussion about this tire yet.
Tire B
Mixed
Falken Azenis FK510
Community members frequently view the Falken Azenis FK510 as an affordable, budget-friendly alternative to premium tires like Michelin Pilot Sports, offering strong wet weather grip and good everyday road comfort. However, opinions are mixed due to rapid treadwear, with multiple drivers reporting bald tires in 10,000 to 15,000 miles or poor durability during track and autocross sessions. Furthermore, some users note compromises in steering response, road noise, and overall performance compared to top-tier max performance tires.
jaguarforums.com
“I've got a set of Falken Azenis FK510 on my 20" Detroits, which I've been running for several years. They weren't expensive at the time and not noticeably different to the Pirellis on before - I would buy them again.”
r/FocusST
·4 upvotes ·2020-07-09
“ST feels boaty on new Falken’s I recently purchased a set of 245/40/18 Falken Azenis FK510 to put on my stock wheels. After, the car feels like it’s constantly driving on a wet road. Even after getting heat into the tires, the car feels boaty and like the rear end doesn’t want to follow the front. Any tips? Or did I make a bad choice in tire?”
f30.bimmerpost.com
“Quote: Originally Posted by alohasurftoad G-Max RS, Falken FK510 or Firestone, all good. +1 on the Falken FK510 , about 500 miles in and very quiet and comfortable. Exceptional dry/wet traction.”
Top themes
#budget friendly pricing#wet weather traction#fast treadwear#track durability concerns#ride comfort#cabin road noise#daily street driving
Based on 63 community posts
Specs side by side
| Attribute | A · Bridgestone Potenza RE050A Run Flat | B · Falken Azenis FK510 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | — | Passenger Car / Crossover |
| Sizes available | — | 93 |
| Rim diameters | — | 17″ – 22″ |
| Tread depth | — | 10/32″ |
| UTQG | — | 300 A A |
| Sidewall | — | Blackwall |
| Max pressure | — | 50 psi |
Which one should you actually buy?
45
/ 100
Bridgestone Potenza RE050A Run Flat
73
/ 100
Falken Azenis FK510
Winner: Falken Azenis FK510 — better handling, wet and dry. It leads or ties in every category we score.
Pick tire B
You enjoy sharp, responsive handling
Falken Azenis FK510 scores 71 vs 29 on handling.
Pick tire B
Your priority is wet-weather safety
Falken Azenis FK510 scores 83 vs 47 on wet.
Pick tire B
You want the most grip on dry roads
Falken Azenis FK510 scores 74 vs 46 on dry.
Pick tire B
You want the longest tread life
Falken Azenis FK510 scores 66 vs 48 on treadwear.
Tire A · Bridgestone Potenza RE050A Run Flat
Tire B · Falken Azenis FK510
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Potenza RE050A Run Flat or Azenis FK510?
Which is better in the wet, Potenza RE050A Run Flat or Azenis FK510?
Falken Azenis FK510, 83 vs 47 on our wet score.
Which grips better on dry roads, Potenza RE050A Run Flat or Azenis FK510?
Falken Azenis FK510, 74 vs 46 on our dry score.
Which is more comfortable, Potenza RE050A Run Flat or Azenis FK510?
Falken Azenis FK510, 52 vs 42 on our comfort score.
Which lasts longer, Potenza RE050A Run Flat or Azenis FK510?
Falken Azenis FK510, 66 vs 48 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