What are mid-drive systems?
 

Hi, I'm new to the forum. Really wanted to ask about something from this article:

Start with the right bike when converting to an electric bike

and this one:

Electric Bike Mid drive Systems - eiProject

I looked up mid-drive systems and the latter was what I found. Could someone explain to me what a mid-drive motor and a hub motor is? A provided link would be nice.

We're trying to build an electric motor bike.

Hub motor --- motor is part of hub, either front or rear or both.

Mid-drive --- Motor is part of crankset.

Go to ebikesca and open the learn section.

If you're fortunate slo will answer much better than I did.