For those of you that don't know, they are those little bits of metal that make it difficult to take your front wheel off.
I got fed up with mine on the Bianchi and the wife's LeMond and filed 'em off. It sure makes it nicer putting bikes up on my roof rack. It took about 2 minutes per bike. My Airborne didn't have any for some reason. (Which prompted me to do the other 2)