This isn't what I planned to post next for Steampunk two-wheeler week, but it is just too cool and too weird to hold back. Plus it is too random for me to tax my brain, coming up with some contrived connection with the upcoming group.
The 1914 Aerothruster, a motor-assisted bicycle with a twist: the motor doesn't power the chain drive or wheel. Nope, that would be too obvious. The inventor in stroke of diabolical genius worthy of a comic book super-villain, decided to make the motor power a propeller that sits behind the rider!
Somehow this never took off... or should I say caught on... or well the fact that I can't come up with a ready expression for market acceptance that doesn't immediately invite death-trap puns, explains the obscurity of this contraption.
Still, if there was ever a vehicle designed to evoke quizzical looks, this is certainly it.
The title link will take you to a blog post on the bike with scans from a magazine article on the bike.
Thanks to Lady Vim on the Brass Goggles Forum