The diploma thesis deals with the design of a central module of a small off-road electric vehicle Modulo. The theoretical part of the thesis summarizes the theoretical knowledge used in solving the topic and current developments in the field of small off-road electric vehicles. In the practical part of the diploma thesis, after the elaboration of the request sheet and after the summary of the required parameters, the design of the central module from ultralight materials is elaborated and the FEM strength control of the central module bridge structure is elaborated. The design of the central module and the drawing documentation are developed in the CAD system Creo Parametric 7.0.2.0 2021.