Hankook Ventus S1 Evo Z K129 vs Bridgestone Potenza Sport
In the 2 independent tests that ran both tyres, the Bridgestone Potenza Sport finished ahead 2 times and the Ventus S1 Evo Z K129 not once. The Ventus S1 Evo Z K129 was stronger in comfort, the Potenza Sport in dry and wet.
Performance profile
7 measurements from the 2 shared tests, each tyre shown as its share of the better figure in every test.
Where each is furthest ahead
Ventus S1 Evo Z K129
Potenza Sport
Point at or tap any spoke for both tyres' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 36 m stop against 34.2 m is 95%; each spoke averages the shared tests that recorded it. The scale stops at 97%: a point further in sits on the hub's edge, hollow. 3 measurements recorded in only one shared test are left off; every measurement is in the table further down.
Where each scores higher
Ventus S1 Evo Z K129
Potenza Sport
Point at or tap any spoke for both tyres' figures.
Category scores are percentiles among tyres of the same season and class: 90 means this tyre out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Where owners rate each higher
Ventus S1 Evo Z K129
Potenza Sport
Point at or tap any spoke for both tyres' figures.
Owners rate the Ventus S1 Evo Z K129 81% from 5 reviews and the Potenza Sport 80% from 139. 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 tyres 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 tyre did better.
| Measurement | Ventus S1 Evo Z K129 | Gap | Potenza Sport | Wins |
|---|---|---|---|---|
| Dry Potenza Sport ahead | ||||
| Dry Braking m | 37.7 | 3.4% | 36.35 | 0-1 |
| Dry Handling km/h | 118.9 | 1.2% | 120.4 | 0-2 |
| Wet Potenza Sport ahead | ||||
| Wet Braking m | 42.1 | 4.8% | 40.55 | 1-1 |
| Wet Handling km/h | 82 | 2.3% | 83.9 | 0-2 |
| Wet Circle (m/s) | 7.08 | 3.7% | 7.34 | 0-1 |
| Wet Circle (s) | 11.56 | 5.8% | 10.89 | 0-1 |
| Straight Aqua km/h | 84.35 | 1.5% | 82.9 | 2-0 |
| Curved Aquaplaning m/sec2 | 2.3 | 0.4% | 2.29 | 1-0 |
| Comfort Ventus S1 Evo Z K129 ahead | ||||
| Noise dB | 70.45 | 1.7 dB | 72.1 | 2-0 |
| Value Level | ||||
| Rolling Resistance kg / t | 9.03 | 1.9% | 9.22 | 1-1 |
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 tyres shared.
Head to head in 2 tests, 2022 to 2024
Each row is one published test in which both tyres ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Ventus S1 Evo Z K129 | Field | Potenza Sport |
|---|---|---|---|
| 2024 Sports Car Tyre Test | P5 of 7 | P4 of 7 | |
| 2022 Sport Auto UHP, UUHP and Semi Slick Tyre Test | P2 of 10 | P1 of 10 |
Ventus S1 Evo Z K129 vs Potenza Sport: your questions
Is the Hankook Ventus S1 Evo Z K129 or the Bridgestone Potenza Sport the better tyre?
In the 2 independent tests that ran both tyres, the Bridgestone Potenza Sport finished ahead 2 times and the Ventus S1 Evo Z K129 not once. On the Tyre Reviews Score, which weighs every test and review we hold, the Ventus S1 Evo Z K129 scores 8.9 and the Potenza Sport 9.3 out of 10.
Which is better in the wet, the Ventus S1 Evo Z K129 or the Potenza Sport?
The Potenza Sport led 5 of the 9 wet measurements the shared tests recorded. On average it averaged a 2.3% higher speed on the wet handling course across 2 tests.
Which is better in the dry?
The Potenza Sport led 3 of the 4 dry measurements the shared tests recorded. On average it stopped 3.4% shorter in the dry across 2 tests.
Which is quieter and more comfortable?
The Ventus S1 Evo Z K129 was 1.7 dB quieter (2 tests). Owners rate comfort 7.5/10 for the Ventus S1 Evo Z K129 and 7/10 for the Potenza Sport.
What do owners say?
Owners rate the Ventus S1 Evo Z K129 81% from 5 reviews and the Potenza Sport 80% from 139. 80% of Ventus S1 Evo Z K129 owners would buy it again, against 67% for the Potenza Sport.
Are they available in the same sizes?
The Ventus S1 Evo Z K129 is made in 39 sizes (18 to 22 inch) and the Potenza Sport in 129 (16 to 24 inch). 32 sizes are available in both. On the EU label the Ventus S1 Evo Z K129 is graded A for wet grip and C for rolling resistance in most sizes; the Potenza Sport A and C.
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Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tyres 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 Tyre Reviews Score rates each tyre out of 10 from every independent test result and vetted owner review we hold, so two tyres can be compared even before a test has run them together.
Who does the testing
Every test published as a Tyre Reviews test is run by Jonathan Benson, who has been testing tyres independently since 2007.