Dayton D550S
EU tyre label for every size: 6 sizes of this 3PMSF-marked tyre compared with the rest of the market
The Dayton D550S is a 3PMSF-marked tyre for trucks and buses. Its supplier has registered it in the EU product database (EPREL) in 6 sizes (8 registrations including load and speed variants), for 17.5″ to 19.5″ rims.
Wet grip is rated B–C depending on size, fuel efficiency C–D and external rolling noise 67–72 dB. Every size carries the three-peak mountain snowflake (3PMSF), the mark for tyres tested in severe snow.
The label depends on the size. Sorted by wet grip, then fuel efficiency, then noise, the best-labelled size on sale is 225/75 R17.5 (Wet grip B · Fuel efficiency C · 70 dB), the weakest 235/75 R17.5 (Wet grip C · Fuel efficiency D · 71 dB).
On the EU market since October 2017; the earliest production week registered is 40/2017.
How it compares in its sizes
We compared each size with all other winter and 3PMSF tyres of the same size and class in EPREL (6 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.
All 6 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 |
|---|---|---|---|---|---|---|
| 17.5″ rims | ||||||
| 8.5R17.5C3 | 121/120M | C52% | D100% | 70 dBA76% | 3PMSF | 13/2023 |
| 215/75 R17.5C3 | 126/124M | B97% | D86% | 70 dBA90% | 3PMSF | 40/2017 |
| 215/75R17.5C3 | 126/124M | B97% | D86% | 71 dBA82% | 3PMSF | 13/2023 |
| 225/75 R17.5C3 | 129/127M | B95% | C100% | 70 dBA93% | 3PMSF | 23/2020 |
| 225/75R17.5C3 | 129/127M | B95% | D85% | 67 dBA100% | 3PMSF | 13/2023 |
| 235/75 R17.5C3 | 132/130M | C49% | D79% | 71 dBA85% | 3PMSF | 23/2020 |
| 245/70 R17.5C3 | 136/134M | B96% | D75% | 72 dBB65% | 3PMSF | 31/2020 |
| 19.5″ rims | ||||||
| 265/70 R19.5C3 | 140/138M | B96% | D71% | 69 dBA99% | 3PMSF | 48/2017 |
Questions
Is the Dayton D550S a quiet tyre?
Its declared rolling noise ranges from 67 dB to 72 dB (median 70 dB). In 83% of the sizes we could compare, it is at least as quiet as three quarters of same-size rivals.
How good is the Dayton D550S in the wet?
Its wet grip class is B–C. In 67% of compared sizes that is at least as good as three quarters of same-size rivals.
Is the Dayton D550S suitable for snow?
8 of 8 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 Dayton D550S launched?
It has been on the EU market since October 2017. The earliest production week in its registrations is 40/2017; the DOT code on the sidewall shows the week and year of your tyre.
More from Dayton
Source: EPREL, the European Commission’s product registry for energy labelling — 8 registrations, data as of 23 October 2026. Suppliers have updated 8 of these registrations since first publication. Label values are the supplier’s declaration.