Yep, a bicycle.
I've Seen it. Definitely fake but pretty fun. This copy cut out that this is actually a commercial for a bike company, I think Trek but my memory may be off.
Oh here we go, it was specialized: http://cdn.specialized.com/bc/microsite/movies/
Ars Longa, Vita Brevis
Hey if you wanna see a real guy on a bike out run the fuzz google ghost rider movie. This guy is for real... Ummm. not a bicycle though, but just as impressive.
I don't spellcheck...