I have been chasing an illusive sound while riding and decided to pull the Tow Pac fenders yesterday to examine things... I found a wear mark on the cross piece where the fender bracket attaches to the Tow Pac sub-frame... I also added a long rubber strip along the frame to keep the fiberglass fender off the steel sub-frame... A test ride a bit later this morning will be in order to see if I found the offending noise...
Les