My B-72, proudly mounted on my Raleigh Superbe, has lost it's nose rivets. Don't know how it happened, because I am not often "on the rivet" when riding this bike. By what means can I replace said rivets? They are the three that attach to the chrome steel nose peice. Meanwhile, I am On The Rivet of a Brooks Profession, got in trade for a cheap padded mountain bike saddle, mounted on my Torpado.