Didar STL1
EU tyre label for every size: 5 sizes of this 3PMSF-marked tyre compared with the rest of the market
The Didar STL1 is a 3PMSF-marked tyre for trucks and buses. Its supplier has registered it in the EU product database (EPREL) in 5 sizes (10 registrations including load and speed variants), for 22.5″ rims.
Wet grip is rated B–C depending on size, fuel efficiency B–C and external rolling noise 73 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 385/55 R22.5 (Wet grip B · Fuel efficiency B · 73 dB), the weakest 385/65 R22.5 (Wet grip C · Fuel efficiency C · 73 dB).
On the EU market since June 2021; the earliest production week registered is 13/2021.
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 (5 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 5 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 | ||||||
| 295/80R22.5C3 | 154/149M | C47% | C93% | 73 dBB63% | 3PMSF | 13/2021 |
| 295/80R22.5C3 | 154/149M | C47% | B99% | 73 dBB63% | 3PMSF | 44/2023 |
| 315/70R22.5C3 | 156/150L | C50% | C84% | 73 dBB68% | 3PMSF | 13/2021 |
| 315/70R22.5C3 | 156/150L | C50% | B95% | 73 dBB68% | 3PMSF | 44/2023 |
| 315/80R22.5C3 | 154/151M | C48% | C93% | 73 dBB67% | 3PMSF | 13/2021 |
| 315/80R22.5C3 | 154/151M | C48% | B99% | 73 dBB67% | 3PMSF | 44/2023 |
| 385/55R22.5C3 | 160K | B89% | C67% | 73 dBB54% | 3PMSF | 13/2021 |
| 385/55R22.5C3 | 160K | B89% | B94% | 73 dBB54% | 3PMSF | 44/2023 |
| 385/65R22.5C3 | 160K | C33% | C75% | 73 dBB50% | 3PMSF | 13/2021 |
| 385/65R22.5C3 | 160K | C33% | B97% | 73 dBB50% | 3PMSF | 44/2023 |
Same label values, different brand
These tyres have exactly the same label values as the Didar STL1 in most of the sizes they share, and both are registered in EPREL by the same manufacturer. Identical labels do not prove two tyres are the same: classes are broad. But consistent matches across many sizes point to a shared production family.
- Goodride MultiAp Z1identical label in 5 of 5 shared size and load/speed variants
- Yartu AZ170identical label in 5 of 5 shared size and load/speed variants
- Golden Crown AZ170identical label in 5 of 5 shared size and load/speed variants
- Bison AZ170identical label in 5 of 5 shared size and load/speed variants
- Ornate AZ170identical label in 5 of 5 shared size and load/speed variants
Questions
Is the Didar STL1 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 Didar STL1 in the wet?
Its wet grip class is B–C. In 20% of compared sizes that is at least as good as three quarters of same-size rivals.
Is the Didar STL1 suitable for snow?
10 of 10 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 Didar STL1 launched?
It has been on the EU market since June 2021. The earliest production week in its registrations is 13/2021; 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 — 10 registrations, data as of 23 October 2026. Suppliers have updated 10 of these registrations since first publication. Label values are the supplier’s declaration.