A saddle clamp is a mechanical device used to hold a saddle in place on a bicycle. It is typically located on the seat tube of the frame and consists of two arms that clamp onto the saddle to keep it securely in position. Saddle clamps are adjustable, allowing riders to fine-tune the position of the saddle to their preferred height and fore/aft position. They are an essential component of a bicycle's cockpit, ensuring that the rider is comfortable and able to maintain proper positioning while riding.