Back in this post, I mentioned the hub motor and regenerative charging system that is the BionX PL350. Well, I have now officially ordered one, which will be used to retrofit my old early-1990s steel frame Specialized Hard Rock.
At this point in time, the trike isn't really on my list. But, since I've already been treating the old Specialized as a cargo mule, the latest consideration is adding an Xtracycle Free Radical to the mix, and really optimizing it for this role...