CST E·X1
EU tyre label for every size: 35 sizes of this summer tyre compared with the rest of the market
The CST E·X1 is a summer tyre for passenger cars. Its supplier has registered it in the EU product database (EPREL) in 35 sizes (123 registrations including load and speed variants), for 16″ to 20″ rims.
Wet grip is rated A in every size, fuel efficiency A–C and external rolling noise 70 dB.
The label depends on the size. Sorted by wet grip, then fuel efficiency, then noise, the best-labelled size on sale is 255/55 R19 (Wet grip A · Fuel efficiency A · 70 dB), the weakest 205/45 R17 (Wet grip A · Fuel efficiency C · 70 dB).
On the EU market since January 2024; the earliest production week registered is 01/2020.
How it compares in its sizes
We compared each size with all other summer tyres of the same size and class in EPREL (35 sizes had at least four rivals). A size scores when its label is at least as good as 75% of them.
Strongest point: wet grip.
What the label means on the road (205/60R16)
Example: the 205/60R16 size, compared with the 915 other summer tyres registered in this size.
Wet braking from 80 km/h
≈34 m with class A, against ≈37 m for the most common class in this size (B).
Fuel efficiency
Class B vs the typical C: ≈0.16 L/100 km less, about 25 litres less over 15,000 km for a 1,500 kg car.
Rolling noise
70 dB against a median of 71 dB in this size (1 dB quieter).
Estimates from the class ranges in Regulation (EU) 2020/740. A label class is a range, so a real tyre can sit anywhere inside it. Every 3 dB doubles the sound energy.
All 35 sizes
The small figure under each class is the share of same-size, same-season tyres this size matches or beats (“–” when fewer than five tyres share the size).
| Size | Load / speed | Wet | Fuel | Noise | Snow / ice | Production from |
|---|---|---|---|---|---|---|
| 16″ rims | ||||||
| 195/60R16 | 89H · 89H · 89V · 89V | A100% | C87% | 70 dBB76% | — | 01/2024 |
| 205/60R16 | 96V RF · 96V RF · 96V RF · 96V RF | A100% | B94% | 70 dBB80% | — | 01/2024 |
| 17″ rims | ||||||
| 205/45R17 | 88Y RF · 88Y RF | A100% | C85% | 70 dBB79% | — | 01/2024 |
| 205/50R17 | 93W RF · 93Y RF · 93Y RF | A100% | B95% | 70 dBB81% | — | 01/2024 |
| 215/55R17 | 98W RF · 98W RF · 98Y RF · 98Y RF | A100% | B90% | 70 dBB78% | — | 01/2024 |
| 225/55R17 | 101W RF · 101W RF · 101Y RF · 101Y RF | A100% | B91% | 70 dBB84% | — | 01/2024 |
| 18″ rims | ||||||
| 215/50R18 | 96W RF · 96W RF · 96W RF · 96W RF | A100% | B88% | 70 dBB76% | — | 01/2024 |
| 215/55R18 | 99V RF · 99V RF · 99V RF | A100% | B94% | 70 dBB84% | — | 01/2020 |
| 225/45R18 | 95Y RF · 95Y RF | A100% | B90% | 70 dBB85% | — | 01/2024 |
| 225/50R18 | 99W RF · 99W RF · 99W RF | A100% | B88% | 70 dBB76% | — | 01/2024 |
| 225/55R18 | 102W RF · 102W RF | A100% | B92% | 70 dBB81% | — | 01/2024 |
| 225/60R18 | 104H RF · 104H RF · 104V RF · 104V RF | A100% | B95% | 70 dBB85% | — | 01/2024 |
| 235/45R18 | 98W RF · 98W RF · 98Y RF · 98Y RF | A100% | B92% | 70 dBB85% | — | 01/2024 |
| 235/50R18 | 97W · 97W · 101Y RF · 101Y RF | A100% | B95% | 70 dBB85% | — | 01/2024 |
| 235/55R18 | 104W RF · 104W RF | A100% | B90% | 70 dBB86% | — | 01/2024 |
| 235/60R18 | 103H · 103H · 107V RF · 107V RF | A100% | B93% | 70 dBB87% | — | 01/2024 |
| 245/45R18 | 100Y RF · 100Y RF | A100% | B90% | 70 dBB91% | — | 01/2024 |
| 19″ rims | ||||||
| 225/55R19 | 103Y RF · 103Y RF · 103Y RF | A100% | B97% | 70 dBB83% | — | 01/2024 |
| 235/40R19 | 96W RF · 96W RF · 96Y RF · 96Y RF · 96Y RF · 96Y RF | A100% | B92% | 70 dBB89% | — | 01/2024 |
| 235/50R19 | 103Y RF · 103Y RF | A100% | B84% | 70 dBB77% | — | 01/2024 |
| 235/55R19 | 105Y RF · 105Y RF · 105Y RF · 105Y RF | A100% | B85% | 70 dBB83% | — | 01/2024 |
| 245/45R19 | 102W RF · 102W RF · 102Y RF · 102Y RF | A100% | B83% | 70 dBB83% | — | 01/2024 |
| 245/50R19 | 105V RF · 105V RF · 105Y RF · 105Y RF | A100% | B76% | 70 dBB74% | — | 01/2024 |
| 255/45R19 | 104Y RF · 104Y RF · 104Y RF · 104Y RF | A100% | B75% | 70 dBA82% | — | 01/2024 |
| 255/50R19 | 103Y · 103Y · 107Y RF · 107Y RF | A100% | B87% | 70 dBB95% | — | 01/2024 |
| 255/55R19 | 111V RF · 111V RF · 111Y RF · 111Y RF · 111Y RF | A100% | A100% | 70 dBA94% | — | 01/2024 |
| 20″ rims | ||||||
| 235/50R20 | 104V RF · 104V RF · 104Y RF · 104Y RF | A100% | B71% | 70 dBB74% | — | 01/2024 |
| 235/55R20 | 102V · 102V · 105Y RF · 105Y RF | A100% | B88% | 70 dBB87% | — | 01/2024 |
| 245/40R20 | 99Y RF · 99Y RF · 99Y RF · 99Y RF | A100% | B77% | 70 dBB83% | — | 01/2024 |
| 245/45R20 | 103W RF · 103W RF · 103Y RF · 103Y RF | A100% | B86% | 70 dBB84% | — | 01/2024 |
| 255/40R20 | 101Y RF · 101Y RF · 101Y RF · 101Y RF | A100% | B79% | 70 dBA84% | — | 01/2024 |
| 255/45R20 | 105V RF · 105V RF · 105Y RF · 105Y RF | A100% | B71% | 70 dBA89% | — | 01/2024 |
| 255/50R20 | 109W RF · 109W RF · 109Y RF · 109Y RF | A100% | A100% | 70 dBA93% | — | 01/2024 |
| 265/40R20 | 108Y RF | A100% | B79% | 70 dBA84% | — | 01/2024 |
| 265/45R20 | 108W RF · 108W RF · 108Y RF | A100% | B82% | 70 dBA90% | — | 01/2024 |
Best-labelled summer tyres in 205/60R16
Other tyres on sale in the same size, sorted by wet grip, then noise, then fuel efficiency.
All tyres in 205/60 R16, ranked by label →
- Hankook Ventus Prime3A A 67 dB
- Nokian Tyres Hakka Blue 3A B 67 dB
- Yokohama ADVAN dB V552A C 67 dB
- Falken Ziex ZE914A EcorunA C 67 dB
- Autogreen SportChaser-SC2A D 67 dB
- Hankook Ventus Prime 4A A 68 dB
Questions
Is the CST E·X1 a quiet tyre?
Its declared rolling noise is 70 dB in every size. In 94% of the sizes we could compare, it is at least as quiet as three quarters of same-size rivals.
How good is the CST E·X1 in the wet?
Its wet grip class is A. In 100% of compared sizes that is at least as good as three quarters of same-size rivals.
Is the CST E·X1 suitable for snow?
No size carries the 3PMSF symbol, so it is not certified for severe snow. In countries with winter tyre rules it does not count as a winter tyre.
When was the CST E·X1 launched?
It has been on the EU market since January 2024. The earliest production week in its registrations is 01/2020; the DOT code on the sidewall shows the week and year of your tyre.
More from CST
Source: EPREL, the European Commission’s product registry for energy labelling — 123 registrations, data as of 25 October 2026. Suppliers have updated 116 of these registrations since first publication. Label values are the supplier’s declaration.