This is one weird looking bicycle.
"Scalyfish Designs has literally reimagined the bicycle from the ground
up and The Bicymple is the result. With the removal of the chain (yeah,
seriously), the number of moving parts and the overall complexity of the
transportation contraption as a whole are greatly reduced. The result
is a direct-drive, freewheeling hub that joins the crank arm axis with
the rear-wheel axis."