ultimatBALL is right, i know way how to make LOOOOOOONG stoppie with bmx, just stoppie bit too much and ur bike got stuck, just like in nitzkits stoppie grab, and stay in there for while...
EDIT: i have a clip of it put its still on my Digi-camera, i have move it to computer from there.(i didnt make 2 hour stoppie btw)