TONY HAWK WAS RECENTLY approached about being the first person to skate a downward spiral loop. The vision was basically of a massive Helix-shaped ramp that could in theory be skated from top to bottom, assuming the skater could find the right combination of speed, centrifugal force and friction to keep on the vertical wall.

Hawk sums it up well when he says the idea created ‘intense anxiety’ for him. Check out the video to see how the ramp was built and see how he fared on it.