How to put an electric motor on a bike?

To put an electric motor on a bike, you will need to purchase an electric bike conversion kit, which includes a motor, battery, controller, and throttle. You will also need some basic tools, such as a wrench, screwdriver, and pliers, and some mechanical knowledge. The motor can be mounted either on the front or rear wheel, or in the bottom bracket, depending on the kit and your preference. Once you have installed the motor, connect the battery, controller, and throttle according to the instructions, and test the system to ensure it is working properly. It is important to note that converting a bike to an electric bike may affect its handling and performance, and some countries have restrictions or laws governing the use of electric bikes on public roads or bike paths.