Originally Posted by
SJX426
[MENTION=488254]agent9[/MENTION] - Check to make sure it is the frame and not the bolt in the RD hanging up! You can't put back what you remove with a file!
Your frame is built for "Nutted" brakes. I always go with what the frame was designed for and don't modify the frame to accommodate upgrades, your choice. Keep in mind that once you increase the hole size, the tube material thickness may not be enough to hold the brake. It is curved unless it is a brake block. The older frames used a tube and not a solid or thick walled bridge. The nutted brakes had a curved washer to mate to the curvature of the tube. You should use a reverse curved surface for the inside of the tube if you drill it out.
Thanks a ton for the information, and images. Visual aids are so helpful, and just knowing the terminology makes research so much easier.
I would love to convert the brakes to nutted and not modify the frame. I see conversions are common, but does anyone have any advice for converting Campy Delta brakes to nutted? Is that crazy?
For the RD I am certain it is not the screw, its actually just a hair below the screw that is binding, but I will take it out completely to double check. One of these days I will be able to share some pictures and make all this much easier.