WTF? This 3D printed bike has no seat tube! | road.cc
Look Ma, No Seat! Trials Riding with Josh Carr - YouTube
Pink Bicycle Without a Seat and a Flat Front Tire | iirraa | Flickr
BAOQI No Seat Fitness Bicycle, 20" Dynamic Cycling Bike, Folding Exercise Bike, Portable Bicycle, Dynamic Stand Riding Exercise Bike (blue), Exercise Bikes - Amazon Canada
Gogoro Eeyo 1 lands in the U.S. with ultra-light 26lb city e-bike without a seat tube - Bikerumor
Bike without seat, for sale (outside an antique shop), Bei… | Flickr