This paperwork provides a detailed overview of how Lean philosophy can be applied in the context of electric bicycle manufacturing to improve efficiency and reduce waste. The first segment of the work is dedicated to detailed research and presentation of the basic concepts and principles of Lean philosophy. Respect for people is the central point of Lean philosophy that is being researched, emphasizing the importance of recognizing and valuing the contribution of each individual employee in the process. This is further deepened through a discussion of work standardization, which stands out as a key element in ensuring consistency and quality in the production process. The concept of Kaizen philosophy, one of the main components of the Lean approach, is also discussed. Kaizen, which means continuous improvement in Japanese, is the basis for achieving gradual but constant improvement in production. The next key concept that is considered is Value Stream Mapping, a method of visualizing the entire production process that enables a better understanding of the flow of materials and information and the identification areas for improvement. The second segment of the paper explores in detail the key tools and techniques of Lean methodology that can be used to optimize production. These include the 5S method for workplace organization, the Poka-yoke technique that is designed to prevent mistakes before they happen, the Just-in-time approach that focuses on reducing waiting times and reducing inventory, and the Kanban method, which helps to better work flow control. Each of these methods is described in detail, with examples of how they can be applied in the context of the production of electric bicycles. The central part of the paper deals with the detailed application of these methods and techniques to the production of electric bicycles. Through a detailed analysis of existing processes and losses, the paper provides specifically proposals for optimizing the production process, improving quality control, better production planning, and encouraging continuous improvement (Kaizen). The case study provides a comparison between conventional and Lean production of electric bicycles, including a detailed quantification of losses and their ranking according to the magnitude of the impact on overall efficiency. Through the specifically application of the Lean philosophy and its tools and techniques, the work shows how to achieve a significant improvement in the efficiency of the production process, reduce losses and increase the competitive advantage in the market of electric bicycles.