I have 2 eteks and a D&D ES-33 that a friend let me borrow. A single etek fit perfect, but it's pushing a '75 Gold Wing and probably will be underpowered. The pair of eteks fit, but it's real tight and will take a lot of extra work to make it work. The D&D fits too, but is longer than I would like. So any of those options would work, but are not ideal.
What I'm wondering is... has anyone built a successful bike using 6 to 9 smaller PM DC motors? The small treadmill 2-3hp ones I've seen look cheap and I doubt they are as strong as they are rated, but would they work if you had enough of them? What are the primary reasons to not use them? And would a separate controller be needed for each?
Thanks, Seth
