Here is a picture of the shifters on my 1985 AD Puch Maxima 15. These shifters work in the manner described. The bikes FD and RD are Suntour ARXs with the rear having a fairly long cage. The bike had a five speed free wheel when new but at some point it was replaced with a 6 speed. The crank is a three speed half step set up. It all worked very well.
