Originally Posted by
bradtx
65er, I fitted the fenders I had in the parts bin today to the Cannondale. They'll work, I can install them in 15 minutes, but look bloody horrible! I
won't post a picture!

While adjusting the fenders I noticed the rack was interfering with the screws that hold the RD hanger. Finger nut from a presta valve was the perfect spacer.
Brad
I have found Presta nuts to be very handy in the shop for just this purpose... and you have to post a picture now
With a rack and fenders I really like the idea of adding an extra mounting point under the rack, some installations might need spacers if there is more rack / fender clearance but it really makes the fender solid and rattle free.
Our custom front rack has this feature as it eliminate the fender wires and provides a rear mount and will be adding this design to any rear racks I build... quite a number of older bikes has these extra mount points when stock fenders were fitted. Modern racks and fenders are usually bought later and from different makers so there is no integration.