Sunfull STL311
EU tyre label for every size: 4 sizes of this summer tyre compared with the rest of the market
The Sunfull STL311 is a summer tyre for trucks and buses. Its supplier has registered it in the EU product database (EPREL) in 4 sizes (7 registrations including load and speed variants), for 22.5″ rims.
Wet grip is rated C in every size, fuel efficiency C and external rolling noise 73 dB. 1 of 7 registrations carry the three-peak mountain snowflake (3PMSF) for severe snow.
On the EU market since April 2021; the earliest production week registered is 27/2020.
How it compares in its sizes
We compared each size with all other summer tyres of the same size and class in EPREL (4 sizes had at least four rivals). A size scores when its label is at least as good as 75% of them.
Strongest point: fuel efficiency. Weakest point: rolling noise, where most same-size rivals do as well or better.
All 4 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 |
|---|---|---|---|---|---|---|
| 22.5″ rims | ||||||
| 385/55R22.5C3 | 160K (L) · 160K (L) | C57% | C65% | 73 dBB40% | — | 27/2020 |
| 385/55R22.5C3 | 164K | C57% | C65% | 73 dBB40% | 3PMSF | 01/2025 |
| 385/65R22.5C3 | 160K (L) · 164K | C53% | C80% | 73 dBB49% | — | 27/2020 |
| 425/65R22.5C3 | 165K | C66% | C90% | 73 dBB62% | — | 27/2020 |
| 445/65R22.5C3 | 169K | C71% | C90% | 73 dBB74% | — | 27/2020 |
Questions
Is the Sunfull STL311 a quiet tyre?
Its declared rolling noise is 73 dB in every size. In 0% of the sizes we could compare, it is at least as quiet as three quarters of same-size rivals.
How good is the Sunfull STL311 in the wet?
Its wet grip class is C. In 0% of compared sizes that is at least as good as three quarters of same-size rivals.
Is the Sunfull STL311 suitable for snow?
1 of 7 registrations carry the 3PMSF symbol, which means the tyre passed the EU severe-snow test. Check the exact size in the table.
When was the Sunfull STL311 launched?
It has been on the EU market since April 2021. The earliest production week in its registrations is 27/2020; the DOT code on the sidewall shows the week and year of your tyre.
More from Sunfull
Source: EPREL, the European Commission’s product registry for energy labelling — 7 registrations, data as of 25 October 2026. Suppliers have updated 3 of these registrations since first publication. Label values are the supplier’s declaration.