VMK means motocross on bicycles, a kind of cycling. For this entertainment there is a special kind of cycling equipment, namely bicycles for cycling.
The lesson itself is a race in which participants need to show tricks on a vertical descent and a horizontal surface in the course of travel. Athletes are required to perform a whole complex of acrobatic exercises, while they are riding a bicycle for a cyclist.
This activity seems to be simple, but it is very dangerous because of the route through which the race takes place, and the most dangerous way of driving.
To ride a BMC bike requires good concentration and a lot of training, because one smallest mistake will lead to very serious injuries. This sport is also on the list of the ten most dangerous hobbies in the world.