Overview of the youngest teams in season 2021. Average is computed at the start of each riders contract, trainees are excluded. Only teams with at least 5 riders on contract are listed.
| # | Season | Team | Class | Average age |
|---|---|---|---|---|
| 1 | 2021 | Equipo Kern Pharma | PRT | 22.2 |
| 2 | 2021 | Uno-X Pro Cycling Team | PRT | 23.0 |
| 3 | 2021 | Sport Vlaanderen - Baloise | PRT | 23.5 |
| 4 | 2021 | Caja Rural - Seguros RGA | PRT | 24.1 |
| 5 | 2021 | Androni Giocattoli - Sidermec | PRT | 24.5 |
| 6 | 2021 | Bardiani-CSF-Faizanè | PRT | 25.0 |
| 7 | 2021 | Bingoal - Wallonie Bruxelles | PRT | 25.1 |
| 8 | 2021 | EOLO-Kometa | PRT | 25.3 |
| 9 | 2021 | Vini Zabù | PRT | 25.7 |
| 10 | 2021 | Euskaltel - Euskadi | PRT | 26.3 |
| 11 | 2021 | Burgos - BH | PRT | 26.4 |
| 12 | 2021 | Team Novo Nordisk | PRT | 26.8 |
| 13 | 2021 | DELKO | PRT | 26.8 |
| 14 | 2021 | Team Arkéa Samsic | PRT | 27.0 |
| 15 | 2021 | Gazprom - RusVelo | PRT | 27.2 |
| 16 | 2021 | Rally Cycling | PRT | 27.3 |
| 17 | 2021 | Alpecin - Fenix | PRT | 27.5 |
| 18 | 2021 | B&B Hotels p/b KTM | PRT | 28.6 |
| 19 | 2021 | Team Total Direct Energie | PRT | 28.6 |