The seat latch on a motorcycle is a mechanism used to secure the seat or seat panel in place on the motorcycle's frame. It typically consists of a latch or catch and a corresponding latch plate or bracket. The latch allows the rider to easily access or remove the seat for maintenance or storage, while ensuring it is securely fastened during riding. Proper functioning of the seat latch is essential for safety and comfort, preventing the seat from shifting or detaching while the motorcycle is in use.