All the cool folks are posting this sort of thing in the
Fossil Fuel Free Forum!
Diver, this sounds like a really interesting project. Do you have a "build log" on it or any other additional information for us?
To run both motors off the same controller (Alltrax Axe4844?) are you just running them in parallel with each other? Same voltage, but half the amps to each motor?
Here's
my motorcycle. I like it a lot and it only has ONE Etek!