I have a 21' and mine do it also. It drives me crazy driving around town.

 

if you guys are referring to a chirp/clicking/rattling sound while hitting the slightest bumps I found a post somewhere which recommend small springs on the brake caliper pins pushing slightly on the pad ears and it corrected it 100%--noise gone. you can purchase these springs at a hardware store.

 

Does this help with the squealing?

 

Nice! Thanks Liveforfun!

 

How much tension do the springs have to have?