It can be disassembled at any time without affecting the appearance of the front of the car (others are locked with base screws, which is extremely inconvenient to disassemble, and it will damage the handlebar for a long time, especially the carbon fiber). The angle of the stand can be adjusted at any time, and the mobile phone can play video and flashlight functions. You can use baby strollers, gym spinning bikes, and shared bikes you ride every day.