Silvan Dillier's custom painted Factor One in Swiss colours for the national road race champion - Josh Evans/Immediate Media
Dillier has the Swiss emblem on the bottom of his down tube, here you can also see the split down tube design of the Factor One - Josh Evans/Immediate Media
Shimano Dura-Ace R9150 levers control the shifting and braking on Dillier's bike - Josh Evans/Immediate Media
The Factor One features a hinged head tube steerer system more commonly seen on time trial bikes - Josh Evans/Immediate Media
Another look at the split down tube design, which allows air to flow through the frameset - Josh Evans/Immediate Media
The seatpost clamp on the frame is adjusted on the inside of the main frame triangle - Josh Evans/Immediate Media
AG2R La Mondiale uses Continental Competition ALX 25mm tubular tyres - Josh Evans/Immediate Media
While other riders opt to leave their aero bars unwrapped for maximum aero benefit, Dillier opts to wrap the bars to the centre prioritising comfort - Josh Evans/Immediate Media
AG2R La Mondiale is one of several WorldTour teams to use CeramicSpeed's OSPW system, with Dillier receiving custom red jockey wheels to match his frame - Josh Evans/Immediate Media
A Swiss emblem also sits on either side of the fork shoulders - Josh Evans/Immediate Media
The red and white design for the Swiss champion stands out among the light blue bikes of Dillier's teammates - Josh Evans/Immediate Media
Dillier's nickname 'Sid' adorns the top tube of the frameset - Josh Evans/Immediate Media
Dillier's aero machine is paired with Mavic Comete carbon wheels - Josh Evans/Immediate Media
The bike is topped with a colour-coordinated Fizik Arione saddle - Josh Evans/Immediate Media
The Factor One uses direct mount Shimano Dura-Ace 9000 series brakes - Josh Evans/Immediate Media
The French WorldTour team uses Look Keo Blade Carbon pedals - Josh Evans/Immediate Media
AG2R La Mondiale pairs its Factor framesets with drivetrain components from Shimano, SRM and CeramicSpeed - Josh Evans/Immediate Media
The SRM Origin crankset is paired with Shimano Dura-Ace 9000 series chainrings - Josh Evans/Immediate Media
At his home national Tour, Silvan Dillier (AG2R La Mondiale) has given his national road race champion's jersey plenty of air time at the front of the Tour de Suisse, managing to embed himself in the breakaway for stages 4 and 5 of the race.
Matching his bold red-and-white national champion's jersey, Dillier has been riding custom-painted Factor framesets in the Swiss colours during the race. Dillier opted for the aero Factor One for stage 2 and the lighter Factor O2 for the stages with more climbing later in the week.
The aero frameset from Factor has a few unusual design features, even for an aero-specific bike, taking the hinged external steerer design usually seen on time trial bikes and a split down tube, again inspired from the brand's time trial frameset.
The design of the frame is in the contrasting red and white Swiss national colours, with the Swiss national coat of arms featuring at the bottom of the down tube and on each of the fork shoulders.
AG2R La Mondiale is one of several WorldTour teams to use CeramicSpeed's OSPW system, with Dillier receiving custom red jockey wheels to match his frame - Josh Evans/Immediate Media
Dillier's nickname (Sid) also appears on the top tube at the junction with the seat tube.
AG2R La Mondiale pair its Factor bikes with wheels from French brand Mavic and drivetrain components are a mix of Shimano and SRM. The Shimano Dura-Ace R9150 rear derailleur has been modified with CeramicSpeed's OSPW system, which has also been customised for the Swiss champion with red pulley wheels.
The Factor One comes with a proprietary aero cockpit system and seatpost, and Fizik provides Dillier with a colour-coordinated Arione saddle.
Click or swipe through the gallery above for a detailed look at Dillier's custom Factor One.
Full specification
Frame: Factor ONE
Fork: Factor ONE
Front brake: Shimano Dura-Ace 9000 direct mount
Rear brake: Shimano Dura-Ace 9000 direct mount
Brake/shift levers: Shimano Dura-Ace R9150
Front derailleur: Shimano Dura-Ace R9150
Rear derailleur: Shimano Dura-Ace R9150 with CeramicSpeed OSPW in custom colours
Cassette: Shimano Ultegra
Chain: Shimano Ultegra
Crankset: SRM Origin with 53/39 Shimano Dura-Ace 9000 chainrings
