"Bikesville" was a monthly publication from Southern California back in the early 70's, edited and published by a friend of mine, Chuck Surprise. He's found the original 17 volumes and digitized them for today's market. One of the of the issues has a six-day on the cover:
http://bikesvillesd.com/70s-archives/
They welcome articles, stories and pictures from the day, or even today's racing and adventures. Enjoy!
Mick