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Hankook OPTIMO K715 View Gallery (1)
135-185/60-80 R13-15 18 sizes 2021

Hankook OPTIMO K715

The Hankook OPTIMO K715 is a Touring Summer tire designed to be fitted to Passenger Cars.

6.3
Tire Reviews Score Based on User Reviews
Limited Confidence View Breakdown
Dry Grip
77%
Wet Grip
68%
Road Feedback
68%
Handling
58%
Wear
58%
Comfort
82%
Buy again
68%
6 Reviews
69% Average
117,000 miles driven
1 Tests (avg: 4th)
Hankook OPTIMO K715

Hankook OPTIMO K715

Summer Premium
BETA
6.3 / 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: 1
Publications: 1
Period: 2011
User Reviews
Weight: 15%
Reviews: 6
Avg Rating: 68.5%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.12
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
Data Sources
TestPublicationDateSizePositionMetrics
2011 European Summer Tire Test - 175/65 R14 ADAC 2011 175/65 r14 4/15 0 metrics
1
Tests
4th
Average
4th
Best
4th
Worst
Latest Tire Test Results
Very balanced tire, scores well in all safety related tests.
Size Fuel Wet Noise
13 inch
165/70R13 79 T D D 70
135/70R13 68 T D D 69
145/70R13 71 T D D 70
155/80R13 79 T D D 70
155/70R13 75 T E D 68
145/80R13 75 T D D 69
145/70R13 71 T D D 69
165/80R13 87 R XL D D 70
165/70R13 79 T E D 70
135/80R13 70 T D D 69
145/70R13 71 T D D 69
155/80R13 79 T E D 70
145/60R13 66 T D D 69
14 inch
175/70R14 84 T D B 68
155/70R14 77 T D D 68
185/80R14 91 T D D 70
185/75R14 89 H E C 69
15 inch
135/70R15 70 T D D 69
View All Sizes and EU Label Scores for the Hankook OPTIMO K715 >>

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Top 3 Hankook OPTIMO K715 Reviews

Given 70% while driving a Ford Fiesta (175/65 R14 T) on mostly town for 20,000 average miles
Oem tire for my fiesta. Good grip on wet and dry. But wear is poor.
August 12, 2016
Given 59% while driving a Hyundai Getz (175/65 R14) on mostly town for 21,000 easy going miles
OEM tires on hyundai getz. Nice dry and wet grip and surprisingly they have some snow grip too (perhaps an all season tire?) but after 4 years of usage (or lets say neglect, as the car wasn't used much), cracks appeared between the points where the sidewalls connect to the upper thread (dont know how to describe it, I hope that's understandable). Perhaps due to low pressure, I don't know. I wouldn't buy these again even if that may not be the tire's fault. I have never seen this happening before.
November 24, 2012
Given 86% while driving a Hyundai I10 (165/60 R14 T) on a combination of roads for 23,000 average miles
This is a good tire which lasted over 22000 miles on the front of my i10. Grip in wet and dry are both very good for this type of tire. Also not bad in snow for a summer tire but a winter tire is much safer way to go in snow.
I have indicated in the review that I would buy again. The front tires having lasted over 22000 miles have now been moved to the back and should last several thousand miles more. However I have been looking at replacement tires and on performance, efficiency and price I have just ordered a couple more Hankook Optimo K715 tires.
September 4, 2011

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Latest Hankook OPTIMO K715 Reviews

Given 83% while driving a Daewoo Kalos (185/60 R14 H) on mostly town for 10,000 average miles
Quality at mid price
July 6, 2010
Given 54% while driving a Kia Motors (165/60 R14 H) on a combination of roads for 37,000 average miles
These tires perform not to well even thou i drive them in a compact car.
December 10, 2009
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