These guys amaze me. It looks silly, but dang they've got to be in great shape.
Probably some of the best conditioned athletes in the world, period.
I recently started riding my bike to the train station each morning as part of my daily commute. I have to admit that the more I get used to it, the more I like it. I have started riding harder and faster, and have even started taking laps around the block before putting the bike in the garage, its pretty exhilirating. I have even gone as far as purcasing a bike computer and a goofy helmet. Don't care how silly it looks, its great!