An instrument-equipped bicycle component has a detection unit for detecting at least one parameter representative of a stress exerted upon the component. The component may have a single piece or multiple parts that do not move relative to one another. The component may be mobile with respect to the bicycle frame while the bicycle is traveling, and the detection unit moves as a single piece with the component with respect to the bicycle frame. The detected parameter may be the torque applied by the cyclist to the aforementioned component through the bicycle pedals.