Cycling has always been a science, with various aspects of the game used to ensure maximum efficiency. Bert Blocken, an aerodynamics professor, noticed some very interesting techniques being employed in the Volta do Algarve this year.
Who is Bert Blocken?
Bert Blocken is a recognized professional in aerodynamics linked to the University of Leuven (Belgium) and has worked extensively in England, carrying out tests in wind tunnels with numerous cyclists, including Visma-Lease a Bike.
During the 2024 Volta do Algarve, Bert noticed that many cyclists were using ‘chest fairings’, small protuberances strategically placed on the chest region to gain an aerodynamic advantage. It was actually the bulge on his chest that caught Bert’s attention.
Why are ‘Chest Fairings’ important?
Popularly called “aeroradios”, these protuberances on the chest provide a small but significant aerodynamic advantage. Initially developed by Jumbo-Visma, this technique uses the radio used to communicate with the team car, located on the chest.
Remco Evenepoel after the race with the radio on his chest
Although UCI regulations prohibit additional clothing or equipment for aerodynamic gains, teams have found this creative way around the rules, giving their riders an extra boost.
Who used this technique?
Blocken noticed that many cyclists from various teams were using this technique in the 2024 Volta do Algarve. He shared photos on Twitter of several cyclists clearly showing the “chest fairings” on their clothing. Some of the cyclists identified include Magnus Sheffield of INEOS Grenadiers and Remco Evenepoel who dominated the Volta do Algarve Time Trial stage.