Urban downhill mountain biking is one of the more extreme versions of cycling out there. Rather going through courses down a mountain, riders navigate through tight alley ways and jump off roofs to skip entire blocks. These events definitely draw a crowd. Spectators fill the streets to watch these guys take on their towns. The second video shows Wyn Maters' run through the town of Lyttelton. He barely lost first place, but he did a killer job!