Originally Posted by
Road Fan
I’m sure it applied to 753, but I don’t know if it actually applied to 853. The story has often been told, but I guess I haven’t much corroboration.
No certification for 853. Anyone can buy that stuff and build with it, and thats from when it was introduced to now.
^ per an oldtimer frame builder who was building when 753 was around and 853 was introduced, and has forgotten more than most any of us will ever know.