I'm confused about some wiring issues on my 57B. There is a single long wire that I presume went directly to tail light not into the posts at the fender. That is , perhaps it reaches through the hole in the fender directly to the taillight. However the taillight has two wires emanating from it going about to the holes/posts in the fender. It has no brake light switch. That seems consistent with the wiring diagram I have.
Is it right that it didn't come with one or is mine missing ( It is hard to image riding at night without a brake light)? I do see several 57Bs on member pages that have brake light switch so I am confused.