The nuclear motor of an electric bicycle is the core component of an electric bicycle. Its performance affects the power, speed, endurance, and wading ability. Generally speaking, as long as the quality of the motor is good, it is not easy to be damaged, and it usually has no problem after several years. There are many kinds of motors for electric bicycles, such as power supply, brushless and brushless, installation location, etc. You don't need to figure out all of them. A single motor classification and technical research can write a long discussion. Different motors have their own advantages. For example, low-speed brushed motors are often used in low-priced scooters and are affordable. The disadvantage is that the uphill and start-up force are small. The brushed and toothed motor is powerful and heavy, so it is easy to take the child uphill. The brushless motor has low noise, long life and high cost. Due to the environment in which the electric vehicle motor is used, there is a very important point of waterproof performance. Take a look at the rusty motor below. The waterproof performance is very poor and the motor will have problems at any time.