Among The Skyscrapers

Riding along the Hudson Greenway, I saw something from the corner of my eye.  No, it wasn't a creature in the river. As a Norwegian Cruise Lines ship ploughed through the choppy water, I spotted this equally-formidable vehicle across West Street:

Of course, I just had to take a look.  The handlebars on that bike came almost to my neck.  As it was locked to a railing, and its owner nowhere in sight, I could only wonder how one mounted, much less rode, it.