San Francisco is a city notoriously rife with cyclists and hipsters, a combination destined for ironic comedy gold. Here we have Sons of Science, a comic rap group from San Francisco and the music video to their song "Mother****ing Bike," "hip-hop journey through the mind of the urban bicyclist," as described by the group. We're not buying that these guys aren't exactly the type of guys that they portray in the video, but this group of hipster cyclists rapping about the bike life is just pure comedy either way. 

via SFist