So I have a Swiss CILO bike from the mid-late 70s that is currently sporting a Campagnolo Nuovo Record RD. The bike came to me with a Shimano Arabesque 600 RD, and the NR swapped right on no problem, so I assume the built in hanger is bog standard, whatever that is.
Question, will a Simplex SX100 type RD like this swap on with no issues, or will there be issues?



...minus the separate hanger, of course!