The smoke begins. The fellow at the left on the ramp has done this for years. I think he will have an early death, although I see that this year he is wearing a dust mask.
The final envelopment and the tire pops.
The rider now comes down the front of the ramp with a flat rear tire. I cannot understand why he is smiling. And it seems odd that the American flag and the State of Wyoming flag feature so prominently in this event. Perhaps the tire industry finds providing new tires patriotic.