Quick-release skewers are a key component that connects the wheel to the bicycle frame, primarily used for mountain and road bike wheelset attachment. It allows tool-free, rapid installation and removal through a lever mechanism. Compared with thru axles, quick-release skewers are lighter and easier to operate, making them widely used on mid- to low-end bicycles and some classic models. Their core function is to ensure secure wheel attachment while improving maintenance efficiency, especially suitable for riding scenarios that require frequent wheel removal.