Special bicycles (for trial and freestyle, track, etc.D.), depending on the purpose, have any specific design features. For example: track bicycles do not have brakes, free pedaling, they do not have a speed switching mechanism. The design of bicycles for the trial and freestyle provides for the installation of special stops in the ends of the axes of the wheels, the presence of a mechanism that allows you to perform multiple rotation of the steering wheel in one direction, etc.p.
