Route |
| 2 July 1921 | ||
| Profile |  |
Flat stage |
| Start |  |
Brest |
| Finish | |
Les-Sables-d'Olonne |
| Distance | 412.0 km (256.0 mi) | |
| Speed | - | |
Classifications |
| Race jerseys after stage 4 | |||
 |
 |
Scieur, Léon () | |
Results |
Race |
Stage
Teams| # |  |
Rider | Age | Team | Time | Bonus | |
 |
|
|
||
| 1 | 7 | |
Mottiat, Louis | 31 | - | - | - | - | ||||
| # | Team | Time | Sum | # | |
Rider | Age | Time | |
||
| # | |
Rider | Age | Team | Time | Difference | Rank +/- | |||
| 1 | 19 | |
Scieur, Léon | 33 | - | |||||
| # | |
Rider | Age | Team | Points | Difference | Rank +/- | |||
| # | |
Rider | Age | Team | Points | Difference | Rank +/- | |||
| # | |
Rider | Age | Team | Points | Difference | Rank +/- | |||
| # | |
Rider | Age | Team | Time | Difference | Rank +/- | |||
| # | Team | Time | Difference | Rank +/- | ||