Not SUP but amazing riding.
Check the way this guy is conected to his vehicle
www.redbull.com/cs/Satellite/en_INT/Video/Big-city-ride----Bike-Sports-Videos----Red-Bull-021242817777952and if you like that here is another one
http://www.redbull.co.uk/cs/Satellite/en_UK/Video/danny-macaskill-way-back-home-riding-clip-021242926492302?p=1242760989724Dave
