I heard in the movie description of the film The 40-Year-Old Virgin:
In a helmet, he pedals his mirror-equipped bike along a suburban belly street.
The scene shows the protagonist pedaling a bike in a quiet and scenic neighborhood, along a straight residential street lined with trees. It does not make much sense to me. Does belly street mean anything? It could also be "valley street". It doesn't sound like a proper name to me either. As far as I can find, the setting doesn't specify a city/state. I am putting the audio clip here for reference.