Bottema used to break a lot of forks, so he decided start his own
company to build stronger ones.
The distinctive way the tube goes past the dropout is purely for looks, & makes them very distinctive.
These forks became very popular in he '80s with 2 models available,
a heavier version for Skatepark riders, & a lighter one for racers.
I still need a set myself for the BMXMuseum, if any has a set out there?
I have stickers too!