For these guys, this is actually dead easy--it's the really artistic stuff where you have to look for the difficulty--search for "Kunstradfahren" on the forum. They learn from the age of 5 and take it very seriously as a sport. Wheelying is one of the very basic exercises. They can do it in their sleep.
Don't they have a ridiculously low GI too? Might help
Don't they have a ridiculously low GI too? Might help