Falken Azenis FK510 vs GT Radial SportActive 2
In the 3 independent tests that ran both tires, the Falken Azenis FK510 finished ahead 3 times and the SportActive 2 not once. The Azenis FK510 was stronger in dry, the SportActive 2 in wet, comfort and value.
Performance profile
8 measurements from the 3 shared tests, each tire shown as its share of the better figure in every test.
Where each is furthest ahead
Azenis FK510
SportActive 2
Point at or tap any spoke for both tires' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 118 ft stop against 112 ft is 95%; each spoke averages the shared tests that recorded it. 4 measurements recorded in only one shared test are left off; every measurement is in the table further down.
Where each scores higher
Azenis FK510
SportActive 2
Point at or tap any spoke for both tires' figures.
Category scores are percentiles among tires of the same season and class: 90 means this tire out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Where owners rate each higher
Azenis FK510
SportActive 2
Point at or tap any spoke for both tires' figures.
Owners rate the Azenis FK510 81% from 156 reviews and the SportActive 2 87% from 8. Each spoke is one question owners answer out of 10; reviews are vetted by hand before publication.
Every measurement, side by side
Averages of the figures both tires posted in the same tests. The gap is the average of each test's own gap, so figures from different cars and years are never mixed. Wins count the tests in which each tire did better.
| Measurement | Azenis FK510 | Gap | SportActive 2 | Wins |
|---|---|---|---|---|
| Dry Azenis FK510 ahead | ||||
| Dry Braking ft | 118 | 3.4% | 122 | 3-0 |
| Dry Handling (s) | 95.91 | 0.3% | 96.19 | 1-0 |
| Dry Handling (mph) | 70.9 | 1.9% | 69.7 | 2-0 |
| Wet SportActive 2 ahead | ||||
| Wet Braking ft | 126 | 10.4% | 142 | 3-0 |
| Wet Handling (s) | 65.17 | = | 65.2 | 1-0 |
| Wet Handling (mph) | 53.5 | 5% | 51 | 1-1 |
| Wet Circle (mph) | 14.5 | 0.2% | 14.6 | 0-1 |
| Wet Circle (s) | 11.95 | 3.2% | 12.34 | 1-0 |
| Straight Aqua mph | 49.1 | 6% | 51.7 | 0-3 |
| Curved Aquaplaning ft/s² | 9.1 | 8.3% | 9.8 | 0-3 |
| Comfort SportActive 2 ahead | ||||
| Noise dB | 71.63 | 1.8 dB | 69.87 | 0-3 |
| Value SportActive 2 ahead | ||||
| Rolling Resistance kg / t | 8.9 | 4.6% | 8.49 | 0-3 |
Braking distances and lap times are better when lower; speeds, wear and grip figures when higher. A test's figures are its own: sizes, cars, surfaces and temperatures differ from one to the next, which is why the averages here are only ever of tests the two tires shared.
Head to head in 3 tests, 2021 to 2022
Each row is one published test in which both tires ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Azenis FK510 | Field | SportActive 2 |
|---|---|---|---|
| 2022 AutoBild Sports Cars UHP Summer Tire Test | P3 of 11 | P10 of 11 | |
| 2022 AMS Performance Summer Tire Test | P8 of 10 | P10 of 10 | |
| 2021 Tire Reviews UHP Summer Tire Test | P6 of 14 | P7 of 14 |
Azenis FK510 vs SportActive 2: your questions
Is the Falken Azenis FK510 or the GT Radial SportActive 2 the better tire?
In the 3 independent tests that ran both tires, the Falken Azenis FK510 finished ahead 3 times and the SportActive 2 not once. On the Tire Reviews Score, which weighs every test and review we hold, the Azenis FK510 scores 8.5 and the SportActive 2 8.3 out of 10.
Which is better in the wet, the Azenis FK510 or the SportActive 2?
The SportActive 2 led 8 of the 14 wet measurements the shared tests recorded. On average it resisted straight aquaplaning at a 6% higher speed across 3 tests.
Which is better in the dry?
The Azenis FK510 led 6 of the 6 dry measurements the shared tests recorded. On average it stopped 3.4% shorter in the dry across 3 tests.
Which lasts longer and costs less to run?
The SportActive 2 had 4.6% lower rolling resistance (3 tests). Owners rate wear 7.1/10 for the Azenis FK510 and 8.3/10 for the SportActive 2.
Which is quieter and more comfortable?
The SportActive 2 was 1.8 dB quieter (3 tests). Owners rate comfort 7.6/10 for the Azenis FK510 and 8.9/10 for the SportActive 2.
What do owners say?
Owners rate the Azenis FK510 81% from 156 reviews and the SportActive 2 87% from 8. 81% of Azenis FK510 owners would buy it again, against 88% for the SportActive 2.
Which is more expensive?
In the 3 tests that listed prices, the Azenis FK510 was the dearer tire in 3 of them, by 14.1% on average. Prices are the test's own at the time, in its own market.
Are they available in the same sizes?
The Azenis FK510 is made in 85 sizes (17 to 22 inch) and the SportActive 2 in 57 (16 to 22 inch). 38 sizes are available in both. On the EU label the Azenis FK510 is graded A for wet grip and D for rolling resistance in most sizes; the SportActive 2 A and D.
More comparisons with these tires
Run either of these?
Your review is the part of this page no test can supply: how the tire wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tires ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tire Reviews Score rates each tire out of 10 from every independent test result and vetted owner review we hold, so two tires can be compared even before a test has run them together.
Who does the testing
Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.