Who Are These Mystery Motorcycle Racers From the 1970s?

Mike looked like a fun guy. He had cool racing duds from Lancer Leathers, liked doing wheelies on pitbikes, and looked good on his Yamaha two-stroke tracker and roadrace bike. Judging by the number of van pictures, he also loved van life. And he knew who famous racer Don Vesco was, since he snapped a pic of his van.