We're putting bearings inside the aluminum. It's going to be pretty complicated. But what I'm really not sure how to do is mount the batteries to the frame. If there's a will there's a way right?
At 60 mph with 196 8 amp hour cells I'm looking at about a fifty mile range

. They aren't the most energy dense cells, but four of them in parallel can do 500 amps (battery side) easily at about 15 C which is all I need for peak power motor side.
Here's the electrical portion of a calculator I made in excel that I used to come up with those numbers: