The Don Castro Red-lined framed, Tracy Fiberglas Triumph only raced once, pronounced illegal for slipstreaming by the AMA and then retired in 1972.  The bike could have disappeared after that.  And without Don Miller, it probably would have.  Miller has been a flat track fanat …

It's 1968 and imagine that you are at the top of your game in the flat track motorcycle racing world.  You show up at an event fueled with enough adrenaline to start a dump truck.  You and your team have come prepared to get the job done.  The riders meeting comes and everyone is ther …