Most likely brake pads. The rotors may not be running quite true. Often new pads are all that is needed. The ultra with the C.B. radio has a wiring loom in addition to the standard loom that runs from under the gas tank and under the fairing cap. This loom often rubs the fairing cap when turning. It can be held down with a tie strap but don't pull on it to hard or you will loosen it where it plugs into the radio. If it is the culprit you can feel it in turns and see where it rubs on close inspection.