I realize that but mechanics were hungry and using whatever they could find/source for components from post WWI to say 1923. Germans were making them, not Americans. Simson had diversified and had an iron-clad weapons contracts and the mid 1920s was the heyday for Simson as they were racing cars, I believe Otto Reif was one of their drivers and some sort of manager, manufacturing weapons, bicycles and rubber baby buggy bumpers among other things.

Serbus,

Raimey
rse