This work describes the conceptual development of construction of more stable road vehicles powered by drivers. Prior to starting the development it was necessary to explore the advantages and disadvantages of existing solutions of the vehicles powered by driver. The first step in the development of the concept was analyzing the problem. It was important do define where this type of vehicle is used, what is its purpose, which groups of users use it and with which problems they face in their daily movements. After that, detection of ergonomics requirements of the product is peformed in order to ensure the ergonomics of the vehicle so that new construcion provides necessary comfort and safety for the drivers. The next step is to define the requirements of the targeted group of users followed by analysis of the market and existing solutions that provides an overview of existing offers on the market and clear definition on all the advantages of existing solutions. After defining the requirements for the new product it is necessary to make a functional product modeling and morphological matrix that comes from it and with that the elaboration of the concepts starts. Selecting solutions from morpfhological matrix leads to three potential concepts and every one of them is described. After that, the evaluation of the concept and selection of the best concept that meets al the requirements and criteria set out in the guidelines on product development is followed. At the end, the best rated solution is described with detailed images of the vehicle.