A cyclist at a 1950s motor racing event

This is another picture taken during a motor racing event in the 1950s but I have no idea what is going on. It seems to be a cyclist following a motorcyclist and being protected from the wind with a shield, but I don’t know if this is a part of the race event, a separate event or if there was also a bike race going on at the same event. Anyone with any knowledge of what is happening please let me know with a comment.