This is absolutely incredible. I don't know the first thing about, well, any of what he shows during the construction of this motorcycle, but I know results when I see them and what he shows is mind-blowing.
The bike is lightweight (its frame weighs less than the massive battery pack), can reach 90 miles per hour and travel over 60 miles on a charge. You're not going to drive this bike cross-country, but for getting around town or just cruising in the country, this design is outstanding.
Most impressive of all, he's posted all the designs and plans for the bike on his website. If you've got the chops to take on something like this yourself, he's provided everything you need to get it done.