There`s a couple of things that cause a "chirping" sound on the 1100 AERO`s.
Look under the bike, under the motor, and you`ll see "the dog bone". It`s called that because it`s shaped like a dogbone. Spray it down real good with with WD 40 of simular product , and the sound will go away for up to a year. You can remove it , grease it, and put it back for a longer fix.
Second, your forks can sqeak from under the fork covers. Spraying some silicone spray using the straw attachment up between the forks and the cover will help.
post this question on THE ALL AERO FORUM for more info.