Australian Stuntbiker Robbie Maddison Does The Unthinkable, Rides A Wave On His Dirtbike Stuntbiker Robbie “Maddo” Maddison’s ‘Pipe Dream’ is going viral all over. In the video. the Australian motorbike stunt rider rides his dirt bike on the powerful and iconic waves of Tahiti. It’s a feat you have to see to believe.