9 Microcontrollers; Data processing apparatus; Downloadable computer application software for mobile phones and computers, namely, software for using to set and modify the riding parameters of electric bicycles, read system information, analyze fault codes, and upgrade programs, and software for realizing system power-on self-check and anti-theft.; Downloadable computer application software for mobile phones, namely, software for using to set and modify the riding parameters of electric bicycles, read system information, analyze fault codes, and upgrade program, and software for realizing system power-on self-check and anti-theft.; Electronic indicator panels; Electronic numeric displays; Power controllers; Pressure sensors