This article examines the main factors and conditions associated with the movement of cyclists during the reconstruction of a traffic accident. The dynamics of the cyclist’s movement depending on the weather conditions, the obstacles encountered in the path of the cyclist’s movement are considered, as something that should be paid attention to by an expert during transport and route studies and the investigation of the circumstances of a traffic accident. On the basis of the studied problems during the research, information was established that is often not included and not described in the case materials, but has quite a lot of signs that can cause driving problems for the cyclist. Why is the classification of bicycles and their schematic design presented for clarity of representation of its parts and controls?
Key words: bicycle, expert, auto technician, auto technical expertise, expert research, cyclist movement, conditions of cyclist movement, traffic accident.