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Federal SS535 View Gallery (1)

Federal SS535

Federal Tires High Performance Summer

The Federal SS535 is a High Performance Summer tire designed to be fitted to Passenger Cars.

6.6
Tire Reviews Score Based on User Reviews
Limited Confidence View Breakdown
Dry Grip
90%
Wet Grip
65%
Road Feedback
83%
Handling
58%
Wear
80%
Comfort
60%
Buy again
76%
5 Reviews
73% Average
89,530 miles driven
Federal SS535

Federal SS535

Summer Economy
BETA
6.6 / 10
Based on User Reviews · Limited Confidence · Updated 23 Feb 2026

The Tire Reviews Score is the most comprehensive tire 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: 5
Avg Rating: 73%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.07
History Points: 10
Methodology & Configuration
Scoring Process
  1. Collect Test Data: Gather results from professional tire 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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Questions and Answers for the Federal SS535

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Top 3 Federal SS535 Reviews

Given 63% while driving a Toyota 2006 Avalon (195/55 R15 V) on a combination of roads for 3,000 spirited miles
Have them on my AE82 FXGT race car for driving to and from events. With the cars suspension setup etc I needed a good quality tire for road use, as bad tires made it handle terribly. The 535 has worked fine as a road tire, good grip and very progressive.
It is a bit noisy although that hasn't bothered me. Feedback is good, bit of a stiff sidewall so not the smoothest either

Can't say much about wear, mine are pretty camber worn.
Helpful 670
January 13, 2019
Given 100% while driving a Smart (205/50 R15) on a combination of roads for 26,000 spirited miles
It's 12th b'day is Sep '15]. The mid engine 699cc+turbo moves it well. Mileage is 72,500[it'd clocked 14,000 before me].
The tire, supplied S/H by my local scrapyard with few choice's, was fitted
(Jun '11] to the rear[drive] axle, for £20!
The Federal compliments the Roadsters firm suspension and handling, and it's done 26,000 miles since, that is impressive.
Fuel has averaged 52mpg pa[winter lower/ summer higher].
[NB Its a Cobra VHP on t'other side!]
Helpful 506
April 22, 2015
Given 61% while driving a Toyota MK3 MR2 Roaster (205/50 R15) on mostly country roads for 15,000 average miles
My car is a Toyota MR2, with these tires all-round. they have done 35000km now and whilst they have worn evenly and still have another 10000km in them, they have to be the noisiest tires I have ever had the displeasure to own. I have religiously looked after their balance, and every 10000km get all 4 wheels aligned. One thing I can do is 'rotate' front to backs because the MR2 has smaller wheels on the fronts..
Helpful 461
August 3, 2012

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Latest Federal SS535 Reviews

Given 80% while driving a Mitsubishi Lancer VR Sportback (225/55 R16 V) on a combination of roads for 45,500 spirited miles
These tires grip very well in the dry, and you can feel when they are at thier limit in the dry as well before they let go.

However in the wet, they are very average, generally have to warm up the tires before you get decent grip out of them, otherwise they don't grab when cold and in rain and there's not near as much progressiveness in grip limit as in the dry.

The tires lasted 38,000km's on a CJ MY09 Lancer, spirited road driving as well as 1 track day 3 laps. Very long and hard wearing, but the grip towards the end of the wear is not good, especially in wet.

They are a harder compound tire than most, so comfort is average, and tire noise is average. But good considering the dry grip you get out of them.

I've already bought a second set, because for the amoount of kms you get for the dry grip, the price is excellent.
Helpful 391
November 30, 2009
Given 81% while driving a Mazda Protege5 (195/50 R16 R) on a combination of roads for 30 spirited miles
These tires have been great on my car.
Helpful 400
February 18, 2009
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