Originally Posted by
pluc
Use a longer screw and bite the bullet. The fenders that attach to the frame are usually easily stolen. Just make sure you don't attach the rack at the end of the screw, keep it close to the frame.
Agreed. Put the rack mounts next to the frame with the fender struts on the outside. Alternately,you could use a set of clip-on fenders. I've also seen plastic strips from some Canadian company that are designed to go under a rack to act as a fender. I believe REI carried them.