Amazing!
Way before my time (I was born in '63), but stories of trips like that on tiny cycles always make me wish I'd been riding during those days. Peter Egan (of Cycle World fame) has stories like that of riding a small bike (either a S90 or CB160 I think) cross country.
Something most of us can't imagine doing today.
I wish Kreidler was still around (and still German). I loved their road racing and LSR bikes from back in the day.