Pretty much anything not covered by the topics above. Short lived production bikes or vehicles, Electrical, Tires, Paint, Brakes, etc. Use this for tech questions, and "Shoot the Bull" for general conversation, no tech.
Thanks. I looked at drawings of those years but can't really say for sure. The drawing qualities are not good enough to actually verify it as one of those. I also looked at early 45 levers but they are offset even greater.