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Bridgestone Potenza RE050A Run Flat

The Bridgestone Potenza RE050A Run Flat is a Max Performance Summer tyre designed to be fitted to Passenger Cars.

5.2
Tyre Reviews Score Based on User Reviews
Limited Confidence View Breakdown
Dry Grip
71%
Wet Grip
54%
Road Feedback
55%
Handling
48%
Wear
55%
Comfort
32%
Buy again
29%
146 Reviews
49% Average
2,181,899 miles driven
Bridgestone Potenza RE050A Run Flat

Bridgestone Potenza RE050A Run Flat

Summer Premium
BETA
5.2 / 10
Based on User Reviews · Limited Confidence · Updated 23 Feb 2026

The Tyre Reviews Score is the most comprehensive tyre scoring system available. It aggregates professional test data from multiple independent publications, user reviews, and consistency analysis using Bayesian statistical methods, weighted normalisation, and recency-adjusted scoring to produce a single, reliable performance rating.

Learn more about our methodology
Score Components
Professional Tests
Weight: 80%
Tests: 0
Publications: 0
User Reviews
Weight: 15%
Reviews: 146
Avg Rating: 49.1%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.08
History Points: 10
Methodology & Configuration
Scoring Process
  1. Collect Test Data: Gather results from professional tyre tests across multiple publications. Minimum 1 test(s) required.
  2. Normalize Positions: Convert test positions to percentile scores using exponential weighting (factor: 1.2).
  3. Apply Recency Weighting: More recent tests are weighted higher with a decay rate of 0.95.
  4. Incorporate User Reviews: Factor in user review data (minimum 5 reviews). Weight: 15%.
  5. Bayesian Smoothing: Apply Bayesian prior (score: 7, weight: 1.5) to prevent extreme scores with limited data.
  6. Calculate Final Score: Combine all components using normalization factor of 1.1. Max score with limited data: 9.5.
Component Weights
Test Data
80%
User Reviews
15%
Consistency
5%
All Configuration Parameters
ParameterValueDescription
safety_weight 0.7 Weight multiplier for safety-related metrics
performance_weight 0.55 Weight multiplier for performance metrics
comfort_weight 0.4 Weight multiplier for comfort metrics
value_weight 0.45 Weight multiplier for value-for-money metrics
user_reviews_weight 0.15 How much user reviews contribute to the final score
test_data_weight 0.8 How much professional test data contributes to the final score
consistency_weight 0.05 How much score consistency contributes to the final score
recency_decay_rate 0.95 Rate at which older test results lose influence (higher = slower decay)
min_test_count 1 Minimum number of professional tests required
min_review_count 5 Minimum number of user reviews required
score_version 1.9 Current version of the scoring algorithm
score_normalization_factor 1.1 Factor used to normalize raw scores to the 0-10 scale
confidence_factor_weight 0.2 How much data confidence affects the final score
position_penalty_weight 0.2 Penalty applied for poor test positions
gap_penalty_threshold 12 Score gap (%) that triggers additional penalties
min_metrics_count 2 Minimum number of test metrics needed per test
limited_data_threshold 2 Number of tests below which data is considered limited
single_test_penalty 0.75 Score multiplier when only one test is available
critical_metric_penalty 0.7 Penalty for poor performance on critical safety metrics
critical_metric_threshold 70 Score below which a critical metric penalty applies
position_exponential_factor 1.2 Exponent used to amplify position-based scoring
position_exponential_threshold 0.9 Position percentile below which exponential scoring applies
gap_multiplier_critical 3 Multiplier for critical gap penalties
max_category_weight 2 Maximum weight any single category can have
max_score_limited_data 9.5 Score cap when data is limited
bayesian_prior_weight 1.5 Weight of the Bayesian prior in smoothing
bayesian_prior_score 7 Prior score used for Bayesian smoothing
evidence_test_multiplier 1.9 Multiplier for test evidence in confidence calculation
evidence_metric_divisor 3 Divisor for metric count in evidence calculation
evidence_review_divisor 10 Divisor for review count in evidence calculation
combined_penalty_floor 0.2
All Tests

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Top 3 Bridgestone Potenza RE050A Run Flat Reviews

Given 29% while driving a BMW 640d (245/35 R20) on mostly motorways for 10,000 average miles
Just recently had my third blowout in 9 months. These are the most fragile tyres I’ve ever used.

Being fitted to a BMW 640d they do have a fair bit of weight on them, however after 3 blow outs and 2 slow punctures in 9 months it appears they’re just completely unusable. If you’re reading this, and it’s not too late, please buy something (anything) else. You’d probably have better luck with tyres made of spaghetti.
July 13, 2025
Given 50% while driving a BMW 335i (225/40 R18) on mostly motorways for 0 easy going miles
I don't think I'm qualified to give dry, wet, and in general, handling characteristics as this is my first performance tyre. I will mention that during heavier rainfall, I did have a few worrying moments of aquaplaning within the speed limit, however, this was during our stormier and wetter seasons. Generally, the tyre does feel grippy on dry and wet roads but I wouldn't say that it is confidence inspiring. Wear can be a little bit weird for sportier drivers. I do find that the outer tread does seem to wear much quicker but weirdly I only experienced it on the front right side. I did take my car in to have the tyres inspected and they weren't able to deduce exactly why except from a possible misalignment. Is that the fault of the tyre? Possibly not, however, seeing reviews on this did not make me feel confident about the general wear characteristics.

Is the tyre comfortable? You do get a lot of noise in the cabin and that is likely due to the tyres being runflat. Having changed to Goodyear Eagle F1 Asymmetric 6, the road noise is almost non-existant even on the roughest of new roads being paved with rocks everywhere. Where it is a stiffer tyre, any bumps you encounter will not feel great at all and will leave you worrying about the state of your wheel. I will give the tyre a big plus on that there is a sidewall that portrudes a fair distance from the rim which protects it. Luckily, I have never kerbed the car and knock on wood, I will never.

In terms of whether or not I would buy it again, I would probably say no. The price is high, it compromises comfort for the ability to run flat for x amount of miles, and I don't think it is a tyre I will stick with if I and many others have had some unusual wear. It is a good tyre nonetheless and if you need the runflat then I would definitely choose this. These were fitted on my BMW 335i 2011 (E92) and the rears were newer than the front and I only recently purchased the car so I cannot tell you how many miles these had been on for. I already had in mind that I wanted to change from runflat to non-runflat so my view may be biased. I do think for drivers who do take it easy and want the peace of mind, this tyre is good and does everything that you need.
May 16, 2025
Given 42% while driving a Mercedes Benz E Class (245/65 R20) on a combination of roads for 6,000 easy going miles
Gotta say, I’ve had some serious bad luck with my Merc E400 and its Bridgestone 245/35R20 run-flat boots.

It had new wheels and tyres when I bought it with 14k miles on it last year. (Bought from a friend so I saw them installed by Wembley Tyres).

Since then, I’ve done ~10k and have got through three tyres, two of which blew on the inside rims, and one cracked wheel. I can’t believe I’ve gone through the better part of £2k in less than 18 months.

I’m based in London where you can seldom reach 30mph but where speed calming and potholes are ubiquitous. That said, I drive carefully, not aggressively, usually on the car’s eco setting for fuel economy.

The car itself is wonderful, but I’m beginning to worry about what it rolls on.

I know run-flats have poor reputations for durability and ride comfort, but I had them on my previous car for the seventeen years / 100k miles I owned it and hardly got through any more (Pirelli Zero 205/55) boots in all that time.

Bridgestone are a premium brand but are they really this fragile?

Seriously considering another brand or even saving a packet on non-runflats and slime….
November 20, 2023

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Latest Bridgestone Potenza RE050A Run Flat Reviews

Given 27% while driving a BMW 318D (225/45 R17) on a combination of roads for 0 average miles
Never again will I buy such a tire!!
November 24, 2025
Given 55% while driving a MINI R56 Factory John Cooper Works (205/45 R17) on mostly country roads for 20,000 average miles
These came standard with my 2012 Mini Cooper Coupe JCW and Im currently on my second set. I knew these cars had sports suspension and figured it was the car itself that was rough and after 7yrs Im almost at wits end to sell it because its so uncomfortable to drive on the country roads. We also have a 2017 200 series BMW with Bridgestone S001 RFTs and it's 'much much' more comfortable then my Mini so I was confused why his runflats were good but mine were rough and he has 17's too. When I seen this page, I realize now its the tyres and that the S001's are way better. I havent had any issues other then the lack of comfort and skipping across the road on rough corners. Wet roads, I never really noticed anything unsafe as you should be driving to conditions anyway. But Im done with these horrible tyres!
March 6, 2023
Check out how the BEST all seasons tyres perform against premium summer and winter tyres!
Given 53% while driving a BMW Z4 (255/30 R19) on mostly country roads for 3,000 average miles
These were fitted to my unmodified 2015 BMW E89 Z4 SDRIVE 20i M SPORT ROADSTER when I bought it 6 months ago, the test drive very nearly put me off as the ride was so harsh, but convinced myself the car was ideal otherwise. Having now driven a few 000's of miles on most UK road surfaces I can honestly say I find the ride comfort to be pretty dreadful in most conditions - although ok on well prepared roads and it rides gentle undulations well, the car crashes on all blemishes in the road surface. Makes driving most A & B roads impossible to enjoy, as attention is focused on just avoiding problems. Crashy, harsh, unforgiving, tramlining. Granted the combination of M suspension (not active), 19" wheels and RFT tyres is hardly ideal, but will certainly be soon changing these tyres for something more forgiving, possibly non-RFT. May also invest in changing to 18" rims at the same time, if budget allows.
June 8, 2022
Given 90% while driving a BMW 3 series (225/45 R17) on mostly country roads for 990 spirited miles
BMW E91 Touring 07, with a 3.0 liter 6 cylinder engine P. baged as 325i with 258 bhp. I have a pair of Bridgestone Potenza RE050A Run Flat on the rear. Lincolnshire roads around Louth are rough as they come, farmers trackers & HGV damages.So tyres get a pounding. I agree about feeling like crashing over bumps, however, they do not let go on bends when I pitch the car as fast around bends from when I used ride my motorcycle around into bends. So not shamble at all. Much better than continents that are recommended which would have worn more than the Bridgtones have. I have used Bridgtones before & they were the first to the market with carbon black in the silicone.So, good grip to the end of the tyre.
March 26, 2022
Given 84% while driving a BMW 118d (205/50 R17) on a combination of roads for 22,000 spirited miles
Now on my third set of these tyres. The car came with these and they have been brilliant so I have decided to stay with them. I don't run the car in winter and I have only once driven the car on these tyres in the snow, I wouldn't recommend it. But a great tyre for the rest of the year. Reading other reviews these tyres appear to be too harsh on low profile tyres and can crack rims, however on 50's they seem fine and I have never experienced this problem.
March 12, 2022
Given 23% while driving a BMW 1 series (225/45 R18) on a combination of roads for 5,000 average miles
Terrible! Same as previously seen review - trying to kill me? Soo relieved when I changed them - all problems solved. Only good for scrap!
November 6, 2021
BMW 330d M Sport (255/30 R19) on a combination of roads for 20,000 spirited miles
Incredibly harsh bone-shaking ride on typical UK roads. OK on smooth roads in the dry. Dreadful grip on wet roads but gradual and predictable breakaway. You can have a lot of 'fun' at very low speeds. I've had two of these tyres literally explode this year - and one cracked wheel. Unfortunately, as they seem to last forever, I haven't tried any alternative yet...
October 19, 2021
Given 36% while driving a BMW M550i (245/35 R20) on mostly town for 0 average miles
One strip from the tire ripped off and tore my brake line. I lost all brake function on the freeway. I would NOT buy these tires again. Tire had 25k miles on it.
August 30, 2021
Given 24% while driving a BMW Z4 (225/45 R17) on mostly town for 57 easy going miles
Turn a good car into a pig. Hard, noisy and unsettled by bumps, undulations, objects, in fact anything you are likely to find on a road. A sports car has firm suspension, in connection with these, you need to have a running order with your dentist to have your fillings tightened.
August 18, 2020
Given 54% while driving a BMW Z4 (225/45 R17 V) on mostly country roads for 25,000 spirited miles
These tires came factory fitted on my E89 Z4. The tires didn't excel in any condition. The tires were above average in terms of dry and wet grip. They were very uncomfortable (even compared to other runflat tires) and not so good at road feedback. Wear wasn't bad, but could be better. Overall I was quite disapointed by the tires.
April 9, 2020
Given 31% while driving a BMW 520d M Sport (245/45 R18) on mostly town for 3,000 average miles
On a 2016 520d M sport with 275/40/18 on rear.

Absolutely dreadful tyres.

I agree with all other reviews.

Extremely hard ride, tram lining constantly, barely any grip.

Worst tyres I've driven on.

Do not waste your money, get some Pirelli/Michelin/Goodyear. I've had a much better experience with them and they last a decent amount of distance.
November 9, 2019
Given 30% while driving a BMW 135i (235/30 R17 R) on a combination of roads for 12,000 easy going miles
I got Re050s only on the rear of my BMW 135i as they were the only Runflat tyres available.
Despite always being properly inflated and driven quietly they were harsh and have only lasted 18 months and around 20,000 km before failing a vehicle check. Very disappointing.
I'm replacing them with the OEM Dunlops.
August 15, 2019
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