Originally Posted by
TugaDude
I assume you have done all of the obligatory internet searches? It helps me to know that so I don't regurgitate info that you've already been privy to.
Here is a thread where the OP says he has found a '73 Model B. You might find some good info in the thread. His bike had center pulls.
Yes, I found that thread, and the main difference other than components are the chrome socks on the red one.