Concours de Machines 2017 | Cyfac

Continuing on our series of our favourites from Concours de Machines this year, our next profile belongs to the guys at Cyfac, who came to the event with a custom made EXOSTIFF bicycle.

This machine was a collaborative effort from start to finish, led from the design-side by Damien Leclerc, engineering-wise by Fabien Deweerdt, and overall by Aymeric Le Brun. The idea was to make a more modern, racy, and altogether different bike from last year’s Oxymore, even though the materials (stainless steel and carbon) used were identical. With last year’s integrated mudguards that are removable this year, a complete unification of lights to the frame (virtually no wires are visible on the bike), and turn signals connected to the lefthand level via Shimano’s Di2 system, the Exostiff seems like an insurmountable beast at first.

The burnt ash look and feel only adds to its ex machina personality. Innocently titled “Candy”, the colour utilises a tinted varnish on a chrome background which is the finishing touch to a very modern and singular design.

Because of the unique features of the bike as listed above, it was necessary to combine traditional steel soldering techniques with the mechanics of binding the specific carbon parts, and make this all fit together with the stratification of the mud guards, front rack, and reinforced fork. Finally, a specialised welding job was done for the electronic bits placed inside the fork pivots, with the frame’s stems allowing for the management of the lights and turn signals.


The journey into the Concours de Machines was one fraught with stress. Last year was not an easy one, what with a mid-race breakage and ultimate disqualification, and the reminder of that lent itself to a final sleepless night before this year’s race. The team’s apprehension didn’t subside until the end of the second test run on Saturday thanks to the team’s rider, Romain Cueff, who was incredibly efficient and finished every event with a good lead.

This is always the case whenever innovative features are introduced that work well in theory but could completely fall apart in practice. The first time Cyfac tested these new components were on the ground at the race, and their anxiety about the bike’s reliability is completely understandable. But thanks to the power of Romain, the weekend was deemed a success.

In the end, the Exostiff will join its older brother, the Oxymore in Cyfac’s showroom and their various events. At the moment, there aren’t any active plans to sell them, as they represent the best of the studio’s knowledge and craftsmanship, which will eventually become standard on all Cyfac models. Very soon, they plan to propose the concept of mudguards that are 100% carbon and entirely removable without tools.

That’s not all. Cyfac is also subcontracting on custom bicycle projects (including a recumbent bicycle as well as a 4-wheeled bicycle for children with reduced mobility), as well as a new carbon manufacturing process thanks to the 3D printer and fiber high performance composites. Lastly, they are working on a “simplified” range to relaunch their brand within retail networks with tools that will enable them to sell Cyfac bikes.

Many thanks to Aymeric Le Brun for the interview. Follow him and the Cyfac crew on Facebook and Instagram.

Words by @jlyn7
Photos by @daam