Debutants
Jacques Bossis is the youngest debutant in Grand Prix du Morbihan in 1977. There are 3 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | BOSSIS Jacques | Gitane - Campagnolo | 24y + 143d |
| 2 | CORBEAU André | Miko - Mercier - Hutchinson | 27y + 43d |
| 3 | CHALMEL André | Gitane - Campagnolo | 27y + 216d |