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BCT S800

The BCT S800 is a High Performance Summer tyre designed to be fitted to Passenger Cars.

4.0
Tyre Reviews Score Based on User Reviews
Limited Confidence View Breakdown
Dry Grip
50%
Wet Grip
29%
Road Feedback
38%
Handling
37%
Wear
60%
Comfort
32%
Buy again
24%
87 Reviews
38% Average
386,546 miles driven
BCT S800

BCT S800

Summer Budget
BETA
4 / 10
Based on User Reviews · Limited Confidence · Updated 30 Jan 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: 87
Avg Rating: 38.4%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 1.22
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 1.8 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 8 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 0.1 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
All Tests

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Questions and Answers for the BCT S800

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Top 3 BCT S800 Reviews

Given 12% while driving a Ford Focus ST (225/45 R17) on a combination of roads for 0 average miles
Great fun for those on a death wish and have a loud stereo!! Pure s### should be banned simple as ...no feel no grip in the wet your better off driving on your rims noise would be about the same !! NEVER BUY THEM mine was on a focus when I brought it took for a tune up garage said I need new bearings ...Next day was on roundabout only just as it was wet later I brought all new tyres not great after buying new car but I'm alive eh !!
Ask a question | Helpful 715
April 16, 2025
Given 10% while driving a BMW 335d (235/35 R19) on mostly motorways for 200 easy going miles
Bought a set of wheels after I shattered one of mine, came with these lovely sporty looking ditchfinders on. Car spins in every gear...in the dry, drove it for the first time in the wet yesterday, and I've honestly never been so scared to tap the throttle, literally uncontrollable. Aqua planed on the smallest of puddles. These are not the "high performance" tyres they're advertised as, my car is running some decent power, so finding tyres that don't spin is hard...but I would NOT risk putting these on any car... The only thing these tyres are good for is doing donuts in a maccies car park. will be getting som rainsport 5s back on ASAP
June 22, 2023
Given 37% while driving a Mitsubishi Lancer 2.0L VR X (225/45 R18) on a combination of roads for 5,000 average miles
Crashed me car into an island
March 8, 2022
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Latest BCT S800 Reviews

Ford (225/40 R18 H) on a combination of roads for 200 easy going miles
These tyres are grim,do not buy them,it's like driving on ice in the wet, weird tyre pattern no use for confident driving,only had them few weeks and then i looked at reviews (silly me)tyres are getting changed to some Avon's instead.Honestly if you have these tyres and it's raining be careful.
September 4, 2020
Given 33% while driving a Volvo S60T5 260bhp (225/45 R17) on mostly town for 500 easy going miles
Horrendous tyres !!!! fitted a set of these to my Volvo S60 T5 and overnight wet weather driving became a white-knuckle ride from the moment you turned the key !! Terrible, I'm fact no ! They're dangerous !!! Cornering was like a computer game and braking was a guessing game of ‘will it stop in time or will it not!' Never ever again and I would tell anyone to dig a bit deeper into your pocket or make sure your life insurance is up to date !!
January 3, 2020
Check out how the BEST all seasons tyres perform against premium summer and winter tyres!
Given 36% while driving a Honda Civic Type R (225/40 R18) on mostly town for 150 average miles
Very bad in wet have on the rear and at 30mph on a slight bend back end just whips rounds like a welded diff mx5/miata
November 7, 2019
Given 31% while driving a Honda Civic Type R (225/40 R18) on mostly town for 0 average miles
Worst tyre i have ever had on a car!! These were on my type r civic when i purchased it, i nearly took it back to the dealer because whilst driving it sounded like the bearings were about to explode, read a review and realised it was the tyres!! Dry grip was bearable but wouldn't trust them at speed, wet grip was like driving on ice, in fact really dangerous, never would i have these tyres on sny car again!
October 25, 2019
Volkswagen (225/40 R18 R) on mostly town for 10,000 average miles
Very poor tyres, dry weather it would wheel spin for fun and screech a lot!
In the wet, two words 'DEATH TRAP' these tyres cannot get traction in the wet and it's like as if your driving on ice.
Shocking tyre, also makes too much noise when I go over 40mph, feels like my wheel bearings are about to explode.

Had no choice but to fit these on my car as I needed tyres for MOT, next time I will stay away from these tyres even if they were for free.
January 18, 2019
Given 29% while driving a Ford Focus ST 225 (2003 2007) (225/40 R18) on a combination of roads for 2,000 miles
Shocking. Cannot emphasise how bad these tires are. They were fitted when I bought the car and the road noise is the worst I've ever experienced. Changed the front ones after 1000 miles to a pair of proxes. Made an incredible difference, and I've just changed the rear ones and it feels like a new car. Sounded like a wheel bearing was about to explode.
November 1, 2018
Given 18% while driving a Saab Automobile 9 3 linear sport 1.9TID (150) (225/45 R17) on a combination of roads for 0 average miles
Horrendous tyre. No grip in the wet. Have them on the back of my Saab 9-3 (already on when purchased). The road noise is terrible, as soon as you hit about 47 mph; then it's time to turn the radio up!! Just to cover the droning noise. Only good thing is they seem to wear slow. However they have had to go!!!
July 2, 2017
Given 31% while driving a Audi S3 (225/45 R17) on mostly town for 1,000 easy going miles
The worst tyres I have ever had the misfortune of driving with. SHOCKING grip. No feedback. Bordering on dangerous in the wet. Sadly they came fitted on a car i had bought.
I have a lot of experience with Tyres working in the Tuning industry and have driven many cars running cut slicks and track day tyres. These can be noisy. They however create a mere whisper compared to these tyres. I might as well have had logs attached to each corner. The road noise is horrendous and sounds like you have wheel bearings about to fall apart. Avoid. Utter Utter Shite.
November 16, 2016
Given 21% while driving a Ford Mondeo TDCI (225/40 R20 W) on a combination of roads for 8,000 average miles
Bought a car that came with 4 of these tyres and oh my gosh they were just AWFUL.

EVERY SINGLE SIDEWALL HAD CRACKS which prompted me to replace them immediately. Dry grip was OK but wet grip was non existent with constant wheel spin under light acceleration.

Braking was a different story. It would cause the steering to snatch violently in the dry (I've had replacement discs, pads and calipers)

I've noticed that some others have mentioned that they thought their wheel bearings were failing - I had exactly the same issue and since replacing the tyres, this has completely gone away.

If you value your life or anyone else's in your car, avoid these tyres at all costs.

The only reason I have given these tyres a 1 for wear rating is due to the sidewalls. There was still around 5mm of tread left on each Tyre at replacement.
November 13, 2016
Given 24% while driving a BMW 3 series (205/40 R17) on a combination of roads for 5,000 average miles
If you want to die. Buy these.

VERY UNSAFE IN WET
September 24, 2016
Given 10% while driving a Chevrolet Silverado 2500 (225/45 R17) on mostly town for 90 easy going miles
Pure junk 3000 miles my 2 rears separate and no one in my city can warranty them...
July 20, 2016
Given 19% while driving a Volkswagen Golf 7 TDI (225/45 R17) on a combination of roads for 10,000 easy going miles
we purchased the car from Car shop Swindon, who replaced the front tyres before we purchased.
I always fit premium tyres to my car over the years (only thing between you and the road) but recently the tyre hit the kerb and split the side wall.
on inspection we found like many others the cracking in the tyre surface.
the noise has been horrendous and ride very poor I would never buy again and indeed we are replacing the other tyre.

if you love your family and wish to keep them safe replace the tyres.
June 21, 2016