Dauphiné: New Factor & Specialized Bikes
- The Critérium du Dauphiné serves as a testing ground for new cycling technology, with the latest Cervélo S5 and a Factor prototype making their first public appearances.
- cervélo's updated S5, piloted by Jonas Vingegaard, features a redesigned fork that extends further ahead of the front wheel, taking advantage of relaxed UCI regulations.
- While the rear of the S5 appears largely unchanged, the focus on leading edges suggests that meaningful aerodynamic gains have been achieved thru the front-end redesign. Vingegaard used...
Witness the future of cycling: the Cervélo S5 and a Factor prototype debuted at the Critérium du Dauphiné, showcasing the latest aero bike technology. Jonas Vingegaard‘s Cervélo S5 boasts a redesigned fork, focusing on aerodynamics and seamless integration. Meanwhile, Jake Stewart rode the Factor prototype, an unreleased aero bike with an aggressive design. This signals a significant shift toward streamlined, high-performance bikes, pushing the limits of both professional racing and everyday cycling. The industry is clearly emphasizing aerodynamic efficiency. News Directory 3 has the scoop on how these bikes are reshaping the landscape. Discover what innovations these bikes bring too the Tour de France and beyond.
Cervélo S5 and Factor Aero Bikes Debut at Critérium du Dauphiné
The Critérium du Dauphiné serves as a testing ground for new cycling technology, with the latest Cervélo S5 and a Factor prototype making their first public appearances. These bikes highlight the industry’s focus on aerodynamic efficiency and seamless integration, blurring the lines between professional racing and everyday cycling.

cervélo’s updated S5, piloted by Jonas Vingegaard, features a redesigned fork that extends further ahead of the front wheel, taking advantage of relaxed UCI regulations. The fork blades also appear deeper, enhancing the bike’s aerodynamic profile. The handlebar setup seems to be moving towards a non-adjustable design, streamlining the front end.

While the rear of the S5 appears largely unchanged, the focus on leading edges suggests that meaningful aerodynamic gains have been achieved thru the front-end redesign. Vingegaard used a 1x drivetrain during Stage 1, though it’s unconfirmed if the bike uses a SRAM UDH for 1×13 gearing compatibility.
Meanwhile, Jake Stewart and other Israel–Premier Tech riders were seen on an unreleased Factor prototype. This new aero bike appears to be a significant departure from the current Ostro VAM, with a focus on maximizing aerodynamic performance.

Key features of the Factor prototype include a wide, sculpted fork crown and fully integrated cables, contributing to a clean and aerodynamic front end. The design suggests a focus on speed, potentially at the expense of overall weight.
What’s next
Both the updated Cervélo S5 and the Factor prototype are expected to see further use and refinement throughout the racing season, potentially culminating in appearances at the Tour de France. These bikes represent the ongoing evolution of aero bike technology, pushing the boundaries of speed and integration.
