Chicago to Miami in 30 days
Sighted on last month's
Chicago Critical Mass
I wondered what the hell it was. Then during a google search on another topic I stumbled across a few jpegs. First called the Exercycle, the pedal-less, gear-less bike was invented by the Huyssen brothers and manufactured by Chicago's Ingersoll-Rand Corporation from 1934 to 1937. The inspiration for the Ingo-bike was the limber platform of some homemade scooters that moved with the up-and-down motion of the rider.
So it's powered by the rider making a bouncing motion on the platform which turns the eccentric hub rear wheel. It has a tall front stem that connects the handlebars to the front tire for steering. To prove that it worked, a team of Ingo-Bikers made an incredible trek from Chicago to Miami on the odd machines in just over 30 days.