I recently picked up a ko cb750 (BUILT 12/1969) that some one converted to a rear disc set up years ago. I want to go back to original & would like to trade for the original ko parts. This includes the complete rear wheel & swing arm with master cylinder as well as disc brake set up. I can send pictures to interested.This is a first class set up in very good condition but you may need to rebuild master cylinder.I have been told this setup is fron a 1975 or f series 750.
Also have dual front disc setup ssher40362@aol.com