FUNNY HOW THINGS GO ROUND

I sold today a bunch of DS7 pistons I didn’t need to a gent in Germany. These guy work on Adler motorcycles from the 50′s… a direct link to YAm as the Adler MB250 was used as the basis of all YDS bike. No wonder the pistons fit straight into the german bike!
I’m sure they could use RDLC pistons from Wiseco if they didn’t have the reed windows cut in. Read somewhere that Wiseco would do them at no extra charge. Something to check.

Here’s their little museum with NSU and Adler bikes.