Disc Brake Retrofits
From Pvdwiki
Slotted Dropouts
[www.bikelugs.com Kirk Pacenti] sells some nice tabs that can be welded to old single speed frames to get them up to speed with disc brakes. I wish that the lower tab was longer. It was very difficult to preserve the usefulness of the slots in this application. I lost 1/3 of the slot range.
