When riding my bike or trike, I hate noise. Here is a tip on how to make you bike quieter. I carry a trunk pack on my rear rack, and on a bare rack stuff bangs against the hard bottom of the trunk pack. Go to a store that sells soft rubber foam, and cut a piece or two the size of your trunk pack, depending the the thickness, and put it on the rack, then set the trunk pack on top of it. You will be amazed how much quieter it makes your ride.