(just posted this in another related thread):Saw an interesting arrangement in a parking lot the other day. These were analog bikes, but the principle should work with ebikes. The bikes were loaded rear end first, and pushed toward the cab. The tailgate was closed, then the front wheel was turned to 90 deg., and the wheel was hung over the outside of the tailgate, so it would work even on quite a short PU bed. I didn't look closely, but I assume the bikes (there were at least 2) were locked into the bed tie-downs. Ropes going from side to side would stabilize the bikes and prevent them from flopping around. Looked secure, except they'd be vulnerable if you were rear-ended--but in that case, you have other issues to worry about.