Kumho Ecsta HS52 vs Michelin Primacy 5
Ahead in each discipline
The Kumho Ecsta HS52 and the Michelin Primacy 5 have met in one independent test so far, and the Primacy 5 finished ahead. The Ecsta HS52 was stronger in dry and wet, the Primacy 5 in value.
Performance profile
8 measurements from the one shared test, each tyre shown as its share of the better figure.
Where each is furthest ahead
Ecsta HS52
Primacy 5
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 90%: a point further in sits on the hub's edge, hollow.
Where each scores higher
Ecsta HS52
Primacy 5
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
Ecsta HS52
Primacy 5
Point at or tap any spoke for both tyres' figures.
Owners rate the Ecsta HS52 82% from 30 reviews and the Primacy 5 82% from 62. Each spoke is one question owners answer out of 10; reviews are vetted by hand before publication.
Every measurement, side by side
Both tyres' figures from the one test that ran them together, on the same car, in the same size, on the same day. The bar grows towards the tyre that did better.
| Measurement | Ecsta HS52 | Gap | Primacy 5 |
|---|---|---|---|
| Dry Ecsta HS52 ahead | |||
| Dry Braking m | 35.7 | 1.7% | 36.3 |
| Wet Ecsta HS52 ahead | |||
| Wet Braking m | 31.1 | 4.9% | 32.7 |
| Wet Braking - Concrete m | 35.9 | 7.5% | 38.8 |
| Straight Aqua km/h | 77.3 | 1% | 76.5 |
| Curved Aquaplaning m/sec2 | 3.2 | 3.1% | 3.3 |
| Value Primacy 5 ahead | |||
| Wear km | 43,200 | 29.6% | 56,000 |
| Fuel Consumption l/100km | 5.8 | 6.9% | 5.4 |
| Abrasion mg/km/t | 91 | 40.7% | 54 |
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 1 test in 2026
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 | Ecsta HS52 | Field | Primacy 5 |
|---|---|---|---|
| 2026 ADAC Summer Tyre Test | P9 of 16 | P7 of 16 |
Ecsta HS52 vs Primacy 5: your questions
Is the Kumho Ecsta HS52 or the Michelin Primacy 5 the better tyre?
The Kumho Ecsta HS52 and the Michelin Primacy 5 have met in one independent test so far, and the Primacy 5 finished ahead. On the Tyre Reviews Score, which weighs every test and review we hold, the Ecsta HS52 scores 9 and the Primacy 5 8.8 out of 10.
Which is better in the wet, the Ecsta HS52 or the Primacy 5?
The Ecsta HS52 led 3 of the 4 wet measurements the shared tests recorded.
Which is better in the dry?
The Ecsta HS52 led 1 of the 1 dry measurements the shared tests recorded.
Which is quieter and more comfortable?
Owners rate comfort 7.1/10 for the Ecsta HS52 and 8.4/10 for the Primacy 5.
What do owners say?
Owners rate the Ecsta HS52 82% from 30 reviews and the Primacy 5 82% from 62. 75% of Ecsta HS52 owners would buy it again, against 78% for the Primacy 5.
Are they available in the same sizes?
The Ecsta HS52 is made in 54 sizes (14 to 20 inch) and the Primacy 5 in 88 (16 to 22 inch). 35 sizes are available in both. On the EU label the Ecsta HS52 is graded A for wet grip and C for rolling resistance in most sizes; the Primacy 5 A and B.
More comparisons with these tyres
vs 
Continental PremiumContact 7 vs Michelin Primacy 5
8-2 in 11 shared tests
vs
Hankook Ventus Prime 4 vs Michelin Primacy 5
0-5 in 5 shared tests
vs 
Hankook Ventus Prime 4 vs Kumho Ecsta HS52
3-5 in 8 shared tests
vs
Bridgestone Turanza 6 vs Michelin Primacy 5
3-4 in 7 shared tests
vs
Goodyear Eagle F1 Asymmetric 6 vs Michelin Primacy 5
2-1 in 3 shared tests
vs
Goodyear EfficientGrip Performance 2 vs Michelin Primacy 5
2-2 in 4 shared tests
vs
Falken ZIEX ZE310 EcoRun vs Kumho Ecsta HS52
3-4 in 7 shared tests
vs 
Michelin Primacy 5 vs Pirelli Cinturato C3
1-8 in 9 shared tests
Run either of these?
Your review is the part of this page no test can supply: how the tyre 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 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.