Years with team
Years with team untill 1931.
| Pos. | Rider | Years with team | First season | Last season |
|---|---|---|---|---|
| 1 | AZURMENDI Eugenio | 1.0 | 1931 | 1931 |
| 2 | DÍAZ Serafín | 1.0 | 1931 | 1931 |
| 3 | ITURRI Joaquín | 1.0 | 1931 | 1931 |
| 4 | MARTÍNEZ Vicente | 1.0 | 1931 | 1931 |
| 5 | TELLERIA José | 1.0 | 1931 | 1931 |
| 6 | URDANGARIN José | 1.0 | 1931 | 1931 |
| 7 | URREIZTI Carlos | 1.0 | 1931 | 1931 |
| 8 | ZUGASTI Ángel | 1.0 | 1931 | 1931 |