The European Commission’s Directorate General for Mobility and Transport (DG Move) published the Final Report of the “Study on powered two-wheeler and bicycle accidents in the EU, SaferWheels”, with the active contribution of NTUA. The SaferWheels study was conducted to investigate accident causation for traffic accidents involving powered two-wheelers and bicycles in the European Union. The objective of the study was to gather PTW and bicycle accident data from in-depth crash investigations, obtain accident causation and medical data for those crashes, and to store the information according to an appropriate and efficient protocol enabling a causation-oriented analysis.