Semperit Speed Life 3 vs Sailun Atrezzo ZSR2
In the 2 independent tests that ran both tires, the Sailun Atrezzo ZSR2 finished ahead 2 times and the Speed Life 3 not once. The Speed Life 3 was stronger in value, the Atrezzo ZSR2 in dry and comfort.
Performance profile
9 measurements from the 2 shared tests, each tire shown as its share of the better figure in every test.
Where each is furthest ahead
Speed Life 3
Atrezzo ZSR2
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. The scale stops at 90%: a point further in sits on the hub's edge, hollow.
Where each scores higher
Speed Life 3
Atrezzo ZSR2
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.
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 | Speed Life 3 | Gap | Atrezzo ZSR2 | Wins |
|---|---|---|---|---|
| Dry Atrezzo ZSR2 ahead | ||||
| Dry Braking ft | 128 | 8.1% | 118 | 0-2 |
| Wet Level | ||||
| Wet Braking ft | 106 | 5.3% | 101 | 0-2 |
| Wet Braking - Concrete ft | 130 | 1.3% | 131 | 1-0 |
| Straight Aqua mph | 47.7 | 0.5% | 47.5 | 1-0 |
| Curved Aquaplaning ft/s² | 10.2 | = | 10.2 | 0-0 |
| Comfort Atrezzo ZSR2 ahead | ||||
| Noise dB | 71.7 | 1.7 dB | 70 | 0-1 |
| Value Speed Life 3 ahead | ||||
| Wear miles | 34,300 | 45.3% | 23,612 | 1-0 |
| Fuel Consumption l/100km | 5.8 | 1.7% | 5.7 | 0-1 |
| Abrasion mg/km/t | 67.4 | 17% | 81.2 | 1-0 |
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 2 tests, 2024 to 2025
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 | Speed Life 3 | Field | Atrezzo ZSR2 |
|---|---|---|---|
| 2025 Summer Tire Test Shootout | P25 of 52 | P9 of 52 | |
| 2024 ADAC Summer Tire Test | P14 of 16 | P13 of 16 |
Speed Life 3 vs Atrezzo ZSR2: your questions
Is the Semperit Speed Life 3 or the Sailun Atrezzo ZSR2 the better tire?
In the 2 independent tests that ran both tires, the Sailun Atrezzo ZSR2 finished ahead 2 times and the Speed Life 3 not once. On the Tire Reviews Score, which weighs every test and review we hold, the Speed Life 3 scores 7.7 and the Atrezzo ZSR2 8.9 out of 10.
Which is better in the wet, the Speed Life 3 or the Atrezzo ZSR2?
Across the shared tests the wet measurements are split 2-2 between the Speed Life 3 and the Atrezzo ZSR2.
Which is better in the dry?
The Atrezzo ZSR2 led 2 of the 2 dry measurements the shared tests recorded. On average it stopped 8.1% shorter in the dry across 2 tests.
Which is quieter and more comfortable?
Owners rate comfort 7.5/10 for the Speed Life 3 and 7.7/10 for the Atrezzo ZSR2.
What do owners say?
Owners rate the Speed Life 3 81% from 2 reviews and the Atrezzo ZSR2 74% from 15.
Are they available in the same sizes?
The Speed Life 3 is made in 90 sizes (15 to 21 inch) and the Atrezzo ZSR2 in 72 (16 to 20 inch). 49 sizes are available in both. On the EU label the Speed Life 3 is graded B for wet grip and C for rolling resistance in most sizes; the Atrezzo ZSR2 A and B.
Which is the newer tire?
The Atrezzo ZSR2 is the newer design: it reached the market in 2022, the Speed Life 3 in 2019. The Speed Life 3 replaced the Semperit SpeedLife 2. The Atrezzo ZSR2 replaced the Sailun Atrezzo ZSR.
More comparisons with these tires
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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 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.