In 1964 I discovered that if I woke up very early on Saturday mornings, (say 5am, before the first cartoons of the day), one local television station ran old Movietone News clips from the 1930's and 1940's.
A news clip from 1932 showed a man riding a Monowheel motorcycle for a crowd of onlookers. Once you see a monowheel you never forget it.
Over the years I've seen updated monowheels, hubless two-wheel motorcycles, hubless quadracycles, hubless automobiles.
Now I can add the Reevo Hubless E Bike to my list, but the startup that created it has closed shop and ran off with the startup money.


And, it's a good thing that he had roll-over curbs in his neighborhood. He'd probably have hurt himself running over a standard 6 inch high curb 
