Castroviejo has strengthened his reputation as one of the sport’s most dependable support riders and strongest time triallists in two successful seasons with the Team and become a hugely respected member of the squad.
The Spaniard said: “I’m really happy to be staying with the Team. I’ve enjoyed two brilliant years here and to be a part of two Tour de France winning teams has been special.
“I wanted to take a next step when I joined the Team and I feel like I have done that. Now I’m really settled here. It has been a great environment for me to keep improving as a cyclist and I’m looking forward to playing my part alongside our exciting group of young riders.”
As well as helping Geraint Thomas and Egan Bernal to Tour de France success, Castroviejo has won back-to-back Spanish national time trial titles since joining the Team - the fourth and fifth of his career.