I was watching an old episode of the Monkees from 1966. In the theme song they are riding what looks like at first glance to be skatebikes.
From “Monkee vs. Machine” (Sep 26, 1966)
I found a page on The Cabe: I’m Looking For Information About “The Monkees” Unicycles
Jon N found an old site with some images of the pages for a Motobécane Rodeocycle Owner’s Manual. I assembled them into a manual. If anyone has an actual manual, I would welcome some quality scans.