Clasificación
2021
Constructores
| Pos | Chasis | Puntos |
 QA
|
QA
|
 PT
|
 ES
|
 FR
|
 IT
|
ES
|
 DE
|
 NL
|
 AT
|
AT
|
 GB
|
ES
|
 SM
|
 US
|
IT
|
PT
|
ES
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ducati | 357 | 20 | 20 | 20 | 25 | 25 | 13 | 20 | 11 | 13 | 25 | 20 | 13 | 25 | 25 | 16 | 16 | 25 | 25 |
| 2 | Yamaha | 309 | 25 | 25 | 25 | 16 | 16 | 25 | 11 | 16 | 25 | 16 | 9 | 25 | 8 | 20 | 20 | 13 | 3 | 11 |
| 3 | Suzuki | 240 | 13 | 13 | 16 | 11 | - | 16 | 13 | 7 | 16 | 20 | 13 | 20 | 16 | 10 | 13 | 10 | 20 | 13 |
| 4 | Honda | 214 | 8 | 3 | 9 | 13 | 10 | 4 | 5 | 25 | 9 | 11 | 7 | 11 | 20 | 13 | 25 | 25 | 13 | 3 |
| 5 | KTM | 205 | 3 | 8 | 11 | 5 | 11 | 20 | 25 | 20 | 11 | 13 | 25 | 10 | 9 | 7 | 7 | 5 | 6 | 9 |
| 6 | Aprilia | 121 | 9 | 6 | 10 | 10 | - | 9 | 1 | 9 | 8 | - | 6 | 16 | 13 | 8 | - | 9 | - | 7 |
