there were a few in Heroes Season One in the background. there was also a "bike messenger" i forger if it was one or two. but he was wearing a Chrome Kremlin upside down. later in season three they went to bike Messenger Co. to get back the comic book that was give to the "Messenger" in a earlier season. there was a bike chase, but i am pretty sure it was a geared bike in that scene. i will have to go back on Netflix and try to find the episode to check it out.