Method handlebar couple determination, program for the implementation of this process; and motorcycle stimulator

A method of determining a pair of handlebars (CG) to be applied to the handlebar (20) of a motorcycle simulator (10), in which method: a) determining a roll angle (ARn) of the platform of the motorcycle from at least one previous value of the roll angle (ARn-1) and an orientation angle of said handlebar handlebar angle (AG); b) determining the handlebar torque (CG) depending on the handlebar angle (AG), and so that depending on the roll angle (CA) so that the handlebar torque (CG) tends to orient the handlebar (20) in the direction which rotates the motor to a side toward which it is inclined. Simulator motorcycle for carrying out this method.