Development of a passive device to fix a bicycle aiming the future construction of an active simulator with 3 degrees of freedom (longitudinal speed, angles of roll and yaw). 3D models detailed in Solid Works of the bicycle and apparatus for determining their inertial properties, compared to the experimental tests on a bicycle similar to that detailed in the SW: position (in contact with the contact points of the tires with the ground) and height of the center of mass; moments of rolling and yaw inertia; moments of inertia of the wheels. Evaluation of the dynamic behavior of a bicycle: transmission speeds, stopping time in braking, change of speeds, change of direction, restriction of movement, ascent and descent of slopes; lateral acceleration, angular scroll and yaw speeds, roll angle, handlebar steering angle, for typical driver commands in standard maneuvers (skidpad, slalom and double lane change); coefficient of dissipation in the wheel bearings, fall time. This information aims to characterize the main parameters and variations of the bicycle to define as specifications of the model: base speed, roll and yaw limits, positioning of yaw axes and scrolling of the articulated base in relation to the anchor points of the bicycle, between others, in order to ensure a greater congruence of their behavior with the bicycle moving normally / freely. Construction of a prototype of the apparatus on a reduced scale. Specification of articulated base components.