I have a 2010 fxstc with 15,000 miles on it, it has started to have a slight howl come from the rear wheel when turning at slow speeds. Less than 10mph. Can't tell if it does it at higher speed,to much noise.I thought rear bearing. Took it to dealer for 15k service and the mech. said it was due to loose spokes on rear rear rim. Does this sound right? Only rode it home from dealer,5 miles. Thought I heard it again, not sure. Will ride more today to see if it is fixed. Heard of squeaky wheel getting grease, but never of howling spokes???