CB750 Chopper frame from scratch in 6:30 mins. - YouTube
Custom Chopper and Motorcycle Frames
Made some good progress on this build - 81fxwg frame chopped 2” up 0” out 38 degree rake, pan swingarm, 80” evo, 4spd , 10” over wideglide : r/ choppers
Another Chopper frame I have is a Santee, built mid 1970's