My girlfriends left brifter has a broken piece, (the top piece with the "105" printed on it is loose and I cannot figure out how to secure it). It stays attached to the brifter but is loose. This is the 9 speed triple 105 brifter which has the silver top piece. I thought it would screw in but there isn't any screw holes, only a pin, so it must snap in place. Pushing it with the pin in does not work.
Any ideas on how to fix, or does it need a replacement piece?