Bill tells the story at YouTube.
This is a photo story of my father's 1958 BMW R50:(via Nag on the Lake)
Boy meets girl, gets married, buys motorcycle. Rides it for 60,000 miles and has accident when wife is pregnant with 3rd child. (me) Wife orders motorcycle to be taken off road until all her children are grown and on their own. One day when bike is moved to a different storage location, son sits on bike and dreams of being a Jedi Master like his father. Couple grows old together and bike is not ridden for 40 years. Husband is now a grandfather of 7 and married for 50 years, when he dies of a stroke at age 71.
Son looks over the old rotting machine and finds note attached to it from his father to him. Son decides to restore the old 1958 BMW R-50 as a tribute to his father. With the help of many friends, especially Peter Nettesheim, world renowned BMW collector, bike is restored to look even better than it did when it was built in Germany.