Trials riding is an amazing sub-genre of mountain biking. People like Danny MacAskill have pushed the sport to new levels performing stunts on bikes that virtually defy physics. But now there is a sub-sub-genre of mountain biking taking off in Sweden, of all places. We here at MTBVT are huge fans of promoting mountain biking to kids, but Osker and Erik, the pre-teens who make up Team Trollhatten, are taking it to a whole other level – on unicycles. Check out their latest offering called “The SM Movie”: