Those boys from Baltimore can ride on the street! But from where I live, they sometimes come out to the Breezwood Proving Grounds (about 1-1.5 hours away) and they can't ride worth dog poo. They just wheelie everywhere causing a ruckus until they are told to "calm down". You have never seen so many "YardSales" off the jumps! I believe crack makes the body very limber for crashing!
BTW, yes they ride on the street of Baltimore like that all the time. The 12 O'clock boys ride like that in the city parks, and the city streets. There just are no riding places left in Md to ride anymore, unless you know Beasley or Pastrana!
If anyone has ever raced in Baltimore at the AX, you know that you have to watch your bike, since between 5-10 get stolen by the local hoodlums every event.
That point in the video at 2:38 and beyond is quite amazing. Never seen that before!!