examples of bicycles 
Strong small bicycle, for acrobatics and competitions on bumpy tracks.
Very stable three-wheeled vehicle with pedals driving either the front wheel or the rear wheels, for the use of young children.
City bicycle designed for comfort and in such a way that the cyclist sits upright; its features include a built-in chain guard and a drop-down fender.
Bicycle with large wheels with treads with studs, a strong frame, numerous gears and powerful brakes, for navigating all kinds of terrain.