Being the curious creatures they are, one of my kids came around and asked questions while I was working on the bike earlier. Well she happened to press down on the rear brake pedal to the point where it was almost vertical. When she did so I heard something pop. Not sure if this is what I heard but I’m assuming it was since it was just dangling.
Little help explaining what this is, where it goes, and what I need to do next to make sure nothing is broke?