Ultimate Combo Compilation Flatland Bmx Pro (World Circuit 2017 Cologne). In this ultimate combo compilation the world's best flatland bmx riders are doing their hardest combo's. You'll see tricks only a very few people on this earth can do. Don't blink your eyes and witness the full power of flatland bmx ! All was filmed at the most famous and important flatland bmx competition: BMX Cologne (2017). Riders: Jean William Prevost, Matthias Dandois, Dominik Nekolny, Masato Ito, Wolfgang Sauter, Sietse van Berkel, Dez Maarsen, Kevin Nikulsk, Thomas Noyer, Gonzalo Bellanti, Dustyn Alt, Matti Hemmings, David Hoffmann, Minato Sato, Gilles van de Sompel, Dan Henning.