I built a chopper bike that was a roadster frame with a tube extended out the back of the seat cluster, and extra seat stays from the drop outs to end of tube, sort of short sissy bar. I made a seat, out of a bit of wood and a bit of foam and a sleeve from a leather jacket. sort of like a motorbike seat. no kick up at the back tho. I had motorbike Ace bars, sometimes called clubman bars. As used by café racers. Also levers from a Russian motorbike. And a strumey archer twist grip gear change. so it had a sort of café racer vibe.
I did have extended bmx forks on it. 12" mag wheel and a chrome 20 x175 3 speed rear wheel. where the frame was made for 26 x 1 3/8". So not to café racer there
I did have extended bmx forks on it. 12" mag wheel and a chrome 20 x175 3 speed rear wheel. where the frame was made for 26 x 1 3/8". So not to café racer there