Sumo Firenza ST-01A
EU tyre label for every size: 13 sizes of this summer tyre compared with the rest of the market
The Sumo Firenza ST-01A is a summer tyre for passenger cars. Its supplier has registered it in the EU product database (EPREL) in 13 sizes (13 registrations including load and speed variants), for 15″ to 18″ rims.
Wet grip is rated C–D depending on size, fuel efficiency D and external rolling noise 68–71 dB.
The label depends on the size. Sorted by wet grip, then fuel efficiency, then noise, the best-labelled size on sale is 205/45 R16 (Wet grip C · Fuel efficiency D · 68 dB), the weakest 185/55 R15 (Wet grip D · Fuel efficiency D · 68 dB).
On the EU market since September 2021; the earliest production week registered is 40/2021.
How it compares in its sizes
We compared each size with all other summer tyres of the same size and class in EPREL (13 sizes had at least four rivals). A size scores when its label is at least as good as 75% of them.
Strongest point: rolling noise. Weakest point: fuel efficiency, where most same-size rivals do as well or better.
What the label means on the road (205/55R16)
Example: the 205/55R16 size, compared with the 1,042 other summer tyres registered in this size.
Wet braking from 80 km/h
≈41 m with class C, against ≈37 m for the most common class in this size (B).
Fuel efficiency
Class D vs the typical C: ≈0.18 L/100 km more, about 28 litres more over 15,000 km for a 1,500 kg car.
Rolling noise
68 dB against a median of 71 dB in this size (3 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 13 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 |
|---|---|---|---|---|---|---|
| 15″ rims | ||||||
| 185/55R15 | 86V | D6% | D55% | 68 dBA96% | — | 40/2021 |
| 16″ rims | ||||||
| 205/45R16 | 87W | C35% | D52% | 68 dBA99% | — | 40/2021 |
| 205/55R16 | 94W | C37% | D25% | 68 dBA98% | — | 40/2021 |
| 17″ rims | ||||||
| 205/40R17 | 84W | C34% | D56% | 68 dBA99% | — | 40/2021 |
| 205/45R17 | 88W | C25% | D40% | 68 dBA98% | — | 40/2021 |
| 205/50R17 | 93W | C32% | D24% | 68 dBA99% | — | 40/2021 |
| 215/40R17 | 87W | C24% | D49% | 68 dBA99% | — | 40/2021 |
| 215/55R17 | 98W | C32% | D19% | 68 dBA97% | — | 40/2021 |
| 225/45R17 | 94W | C23% | D28% | 68 dBA99% | — | 40/2021 |
| 225/55R17 | 101W | C29% | D16% | 68 dBA99% | — | 40/2021 |
| 18″ rims | ||||||
| 225/40R18 | 92W | C22% | D36% | 71 dBB65% | — | 40/2021 |
| 235/50R18 | 101W | C33% | D18% | 69 dBA94% | — | 40/2021 |
| 245/45R18 | 100W | C24% | D17% | 69 dBA96% | — | 40/2021 |
Best-labelled summer tyres in 205/55R16
Other tyres on sale in the same size, sorted by wet grip, then noise, then fuel efficiency.
All tyres in 205/55 R16, ranked by label →
- Nokian Tyres Powerproof EA A 67 dB
- Falken Ziex ZE320A B 67 dB
- Falken Ziex ZE310 EcorunA C 67 dB
- Yokohama Advan Fleva V701A C 67 dB
- Yokohama ADVAN dB V552A C 67 dB
- Nokian Tyres Hakka Blue 3A C 67 dB
Questions
Is the Sumo Firenza ST-01A a quiet tyre?
Its declared rolling noise ranges from 68 dB to 71 dB (median 68 dB). In 92% of the sizes we could compare, it is at least as quiet as three quarters of same-size rivals.
How good is the Sumo Firenza ST-01A in the wet?
Its wet grip class is C–D. In 0% of compared sizes that is at least as good as three quarters of same-size rivals.
Is the Sumo Firenza ST-01A 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 Sumo Firenza ST-01A launched?
It has been on the EU market since September 2021. The earliest production week in its registrations is 40/2021; the DOT code on the sidewall shows the week and year of your tyre.
Source: EPREL, the European Commission’s product registry for energy labelling — 13 registrations, data as of 26 October 2026. Suppliers have updated 0 of these registrations since first publication. Label values are the supplier’s declaration.