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Kumho Solus HA31 View Gallery (1)
145-275/40-80 R13-18 134 sizes 2014 Winter rated

Kumho Solus HA31

The Kumho Solus HA31 is a Touring All Season tyre designed to be fitted to Passenger Cars.

7.9
Tyre Reviews Score Based on Professional Tests & User Reviews
Medium Confidence View Breakdown
Dry Grip
80%
Wet Grip
79%
Road Feedback
79%
Handling
80%
Wear
74%
Comfort
83%
Buy again
86%
Snow Grip
90%
Ice Grip
85%
9 Reviews
82% Average
69,179 miles driven
6 Tests (avg: 8th)
Kumho Solus HA31

Kumho Solus HA31

All Season Mid-Range
BETA
7.9 / 10
Based on Professional Tests & User Reviews · Medium 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
Comfort
86.2
0.32x / 1 test
Value
79.4
0.42x / 4 tests
Snow
76.5
1.38x / 2 tests
Wet
68.6
1.93x / 4 tests
Dry
54.1
1.5x / 3 tests

Cross-category scores are derived metrics that combine data from multiple test disciplines to evaluate real-world performance characteristics.

Braking
72.2
5 tests
Handling
56.4
3 tests
Score Components
Professional Tests
Weight: 80%
Tests: 6
Publications: 4
Period: 2014 - 2019
User Reviews
Weight: 15%
Reviews: 9
Avg Rating: 81.7%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.38
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
Data Sources
TestPublicationDateSizePositionMetrics
2019 Auto Bild All Season Tyre Test Auto Bild 2019 225/45 R17 8/12 12 metrics
2019 All Season Tyre Performance Overview Auto Bild 2019 225/45 R17 9/31 2 metrics
2017 Auto Express All Season Tyre Test Auto Express 2017 205/55 R16 8/10 0 metrics
2016 ACE All Season Tyre Test ACE 2016 205/55 R16 7/10 0 metrics
2015 AZ All Season Tyre Test Auto Zeitung 2015 185/65 R15 6/8 0 metrics
2014 All Season Tyre Test Auto Zeitung 2014 185/60 R15 8/10 0 metrics
6
Tests
8th
Average
6th
Best
9th
Worst
Latest Tyre Test Results
8th/12
Good aquaplaning properties, low wear, short braking distances on snow, low noise.
Average snow handling, slightly extended wet and dry braking distances, soft dry handling, average comfort.
Average.
8th/10
Good snow braking.
Very weak in the wet, weak in the dry.
Size Fuel Wet Noise
13 inch
155/80R13 79 T D C 71
155/80R13 79 T D C 71
14 inch
165/70R14 81 T D C 71
185/60R14 82 H D C 71
185/60R14 82 T D C 71
175/65R14 86 T XL D C 71
185/70R14 88 T C C 71
175/65R14 82 T D C 71
15 inch
185/65R15 88 H D C 71
185/65R15 88 T D C 71
195/55R15 85 H D C 71
195/65R15 91 H D C 71
195/65R15 91 T D C 71
195/65R15 95 V XL D C 71
185/65R15 88 H D C 71
195/55R15 85 H D C 71
16 inch
205/55R16 91 H D C 71
205/55R16 94 V XL D C 71
205/60R16 92 H D C 71
215/60R16 95 H C C 71
215/70R16 100 H C C 71
205/60R16 96 V XL D C 71
205/60R16 92 H D C 71
215/60R16 95 H C C 71
205/55R16 91 H D C 71
215/60R16 95 H C C 71
205/60R16 92 H D C 71
17 inch
225/45R17 94 V XL D C 71
235/65R17 108 V XL C C 71
225/60R17 99 H C C 71
225/50R17 98 V XL C C 71
215/55R17 98 V XL C C 71
215/45R17 91 V XL D C 71
205/50R17 93 V XL D C 71
265/70R17 115 H D C 70
215/55R17 98 V XL C C 71
215/55R17 98 V XL C C 71
225/50R17 98 V XL C C 71
225/45R17 94 V XL D C 71
205/50R17 93 V XL D C 71
215/45R17 91 V XL D C 71
225/60R17 99 H C C 71
18 inch
235/60R18 107 V XL C C 71
225/40R18 92 V XL D C 71
View All Sizes and EU Label Scores for the Kumho Solus HA31 >>

Questions and Answers for the Kumho Solus HA31

Ask a question
April 2, 2019

Car is a Suzuki Swift 2015 with 185/55R16 tyres and suffers bad tramlining with aysemetrical tyres fitted. I'm looking to replace with All season tyres and the best seems to be Vredestein Quatrac 5 however they are also aysemetrical. Considering the Khumo HA31 as the next best non aysemetrical tyre but worried they are a poor tyre overall. What would you choose?

The tramlining won't be a factor of the tread pattern but the tyre construction.
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Top 3 Kumho Solus HA31 Reviews

Given 82% while driving a Kia Motors (185/65 R15) on a combination of roads for 33,000 spirited miles
These tires have been great for my self-esteem! They are on our economical Kia Rio 2014 for 55,000 km now, and help me feel good at the wheel when we are on-ramping between highways. They hold really, really well there, so the tail-gaters almost always drop off into the distance! Fun. On snowy roads and other poor-traction conditions, these tires also have been faithful for us. If I lose control a little on ice, I'll blame it on myself, not my tires! In heavy snow, we may bog down but can work ourselves out. Sadly, the tread does wear down. We're at 88% of our 60,000 km warranty and thinking it's probably time to replace them now that one tire has a slow leak...
June 25, 2023
Given 91% while driving a Peugeot 107 (155/65 R14) on a combination of roads for 2,679 spirited miles
Running these on a peugeot 107. I've had kumhos on larger cars before. For my daily commuter, I thought for the price I'd give the all seasons a go to avoid a second set of winter wheels again. Over the last month the snow has been heavy, over taking slow struggling cars has a breeze. They do feel soft when warm, but the cold weather and wet grip makes up for the warm short fall. The aggressive pattern does cause a slightly higher than normal road noise at 70mph. When these wear out, I'll be buying another set. For the price on a small car, I would definitely recommend them to anyone.
February 10, 2021
Toyota (235/55 R18 V) on mostly country roads for 10,000 spirited miles
Bought as a set for my RAV 4, I use them as I need a decent all season tyre whilst driving from the UK to Germany (where winter tyres are mandatory between October & March) but without having change them as they are all seasons.- have used them before and definitely will once these need replacing.
October 16, 2019

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Latest Kumho Solus HA31 Reviews

Given 71% while driving a Audi A4 Quattro 1.9 TDI Avant (235/45 R17) on mostly motorways for 8,000 average miles
Decided I'd go for these on my winter wheels, I assumed they'd suit the UK better than an out and out winter tyre more suited towards ice, slush and snow capability, (to the detriment of motorway/fast road performance, most of my driving). Wasn't overly impressed last year to be honest but they did do everything reasonably well though.
Didn't have them on in the summer so can't comment, however I put them on a few months back for this winter, and in this recent weather they have been phenomenal!! Yes I drive a quattro, but I've been pulling out stranded cars, vans and even a lorry, the traction was unbelievable, these tyres never missed a beat, really REALLY impressed.
Yes I 'd say they maybe biased towards cold and wet weather performance (awesome in the snow) but they are more than capable of being a full on all year round tyre option, if you only have one set of rims and don't demand the performance required of a sports summer tyre.
March 4, 2018
Kia Motors (165/60 R14) on a combination of roads for 500 average miles
Used in heavy snow today, brilliant !
February 27, 2018
Given 83% while driving a Nissan altima (225/55 R17) on a combination of roads for 1,000 average miles
Recently put these tires on my 2008 Altima coupe. Cannot believe the snow and ice traction. I have never had dediciated winter tires and always used a good all season tire year round. Usually I get around just fine, but I recently bought this car used with brand new a id envigorntiresnby yokohama. OMG!!! Never had an all season tire perform so poorly in winter in my 40 years of driving in Canadian winters. Was scared shitless to even drive the car, but finally got up enough couage one day to putz up to the tire dealer and see what we could do. Bought the HA31 all weather Kuhmo tire and was a bit nervous as I could not find that many reviews on line. I tell you, I left there in winter conditions, drove all over the city testing the traction, braking, taking fast corners, parking lots with 8 inches of snow, and these tires stuck like glue. I was Giddy, like a kid, slamming on the brakes, trying to get these tires to fail, I couldnt believe it. If this all weather is this good I can only imagine why people put on winter tires. Snow became slush and loads of water, tires were solid, no slipping what so ever. I have driven them on the dry highway, fairly quiet, going on an 800 km trip this weekend so we will see. So far, love the tires and even if I only get 50k kms out of these I will be happy just for the safety. As one writer posted on another site, if I have one accident because of stupid tires, that 1000 dollar deductable just paid for annice set of tires. Buy these, you will not be disappointed. Happy Driving.
February 17, 2017
Given 86% while driving a Nissan Almera Tino 2.2 DI (195/65 R15 T) on a combination of roads for 4,000 average miles
Great in snow and wet.I like these tyres in curve and wind.In wind weather feel like there no wind,the car is very stability.
January 21, 2016
Given 60% while driving a Volkswagen Golf MK6 1.6 tdi (205/55 R16) on a combination of roads for 10,000 average miles
Average in wet and dry. Not had the chance to test on snow yet, but given the last few winters in the UK i think I'll go back to a summer tyre or the CrossClimate next.

Meant to be very good in the snow.
January 7, 2016
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