I just looked at what you ordered you still gonna need a throddle control of some sort...you might ought to email Dax for complete list of what you need to make that thing work. Pretty sure that's it tho...if it was a kit it would be turn-key www.staton-inc.com sells American made friction drive kits (the engines are generally Japanese like honda)
I was gonna suggest that. Be great to see and ride one before you decide. Be sure to look for local rides in your area in the events section. Even if no one has a BB, is a chance to see and ride different kinds of builds. Most are normally China Girls.
MB folks are really great and no one will care that you do not have one yet.
If I have friction drive with a weaker engine, can I still pedal and the engine act as a pedal assist?
Well you can pedal assist to a point you don't want to over rev the engine but to help it up the hills at the rated speed yes. If it's not running the clutch isn't engaged so you can pedal as hard as you like then. The 2 stroke HT kits have a clutch lever to use however you like the FD is centrifigal.
So if I get this right: friction drives have a centrifugal clutch so when I stop my bike at a stop light, the motor still runs but the roller stops moving on its own power. Does it still spin? Is that why I have to disengage the Bumble bee? I may not be using the right words but im wondering if I can let up on the throttle and coast without lifting the roller off the tire. Do all engines have clutches? (ie a weed wacker engine).
So many questions, I know. I'm really enjoying learning about this stuff. This is a great forum.