The Foil features one single entry for cables on the upside of the downtube. This solution has multiple benefits. First of all it is more aerodynamic than cable entries on the side of the head or downtube as the protrusion is not exposed to airflow due to its position behind the headtube. Additionally, this solu- tion goes for an entry on the upside of the tube and not on the side of the structure which is important for maintaining high lateral stiffness. Furthermore, this solution requires only one opening in the frame, fewer reinforcements are needed and the added extra weight is lower compared to solutions where multiple openings are required. Lastly, a single port facilitates the use of one frame for both mechanical and electronic group sets as there is only a simple exchange of the adaptor required.