Bringing downhill mountain Biking to the people

One of the biggest challenges to making mountain bike racing spectator friendly is access. Simply put, it's hard to get thousands of people to go traipse off through the woods to catch a glimpse of a mountain bike race. Which brings us to the format of urban downhills, of which this is one of the coolest I've seen. Enjoy:

(was hoping to embed the video here but their code seems messed up and I can't make it work)