| Manufacturer | BKT | |
| EAN | 8903094041862 | |
| Manufacturer article number | 15727044 | |
| Trade name or trademark | RT 657 BKT | |
| Tyre size designation | 420/65 R20 138 A8 | |
| Tire type |  |
Summer |
| Tires suitable for use in extreme snow conditions |
No | |
| Speed category symbol | A8 | Approved up to 40 km/h |
| EU Standard | 1222/2009 |