A bicycle pedal comprising: a pedal-pin which extends along a longitudinal reference axis and has a first axial end structured to be coupled to a pedal crank of a bicycle, a pedal-body coupled in a freely rotatable manner on said pedal-pin so as to rotate around said longitudinal axis, a measuring apparatus provided with a sensor circuit configured so as to measure the deformation of the pedal-pin caused by the force exerted by the cyclist on said pedal with respect to a first measurement axis and a second measurement axis which lie on a plane orthogonal to the longitudinal axis and are transversal to one another, said sensor circuit comprises a first Wheatstone bridge measurement circuit comprising four strain gauges (A1,B1,C1,D1), a second Wheatstone bridge measurement circuit comprising four strain gauges (A2,B2,C2,D2), the four strain gauges (A1,B1,C1,D1) of the first Wheatstone bridge measurement circuit are arranged in pairs, one next to the other, on a first surface portion of said pedal-pin which has an approximately rectangular shape and has a first centre-line which extends parallel to the longitudinal axis and is traversed by said first measurement axis, the four strain gauges (A2,B2,C2,D2) of the second Wheatstone bridge measurement circuit are arranged in pairs, one next to the other, on a second surface portion of said pedal-pin which has an approximately rectangular shape and has a second centre-line which extends parallel to the longitudinal axis and is traversed by said second measurement axis, the four strain gauges (A1,B1,C1,D1) of the first Wheatstone bridge measurement circuit arranged on the first surface portion are not angularly interposed between the strain gauges (A2,B2,C2,D2) of the second Wheatstone bridge measurement circuit, arranged on the second surface portion, said pedal characterised in that: said first surface portion and said second surface portion housing the eight strain gauges (A1, B1, C1, D1) (A2, B2, C2, D2) are arranged side by side on said pedal-pin so that their section orthogonal to the longitudinal reference axis is contained within an angle less than 150° and occupies an arc contained in a semicircle in order to leave the other semicircle free from strain gauges and/or Wheatstone bridges, said first surface portion and said second surface portion of said pedal-pin are angularly arranged, one next to the other and adjacent around said longitudinal axis. a pedal-pin which extends along a longitudinal reference axis and has a first axial end structured to be coupled to a pedal crank of a bicycle, a pedal-body coupled in a freely rotatable manner on said pedal-pin so as to rotate around said longitudinal axis, a measuring apparatus provided with a sensor circuit configured so as to measure the deformation of the pedal-pin caused by the force exerted by the cyclist on said pedal with respect to a first measurement axis and a second measurement axis which lie on a plane orthogonal to the longitudinal axis and are transversal to one another, said sensor circuit comprises a first Wheatstone bridge measurement circuit comprising four strain gauges (A1,B1,C1,D1), a second Wheatstone bridge measurement circuit comprising four strain gauges (A2,B2,C2,D2), the four strain gauges (A1,B1,C1,D1) of the first Wheatstone bridge measurement circuit are arranged in pairs, one next to the other, on a first surface portion of said pedal-pin which has an approximately rectangular shape and has a first centre-line which extends parallel to the longitudinal axis and is traversed by said first measurement axis, the four strain gauges (A2,B2,C2,D2) of the second Wheatstone bridge measurement circuit are arranged in pairs, one next to the other, on a second surface portion of said pedal-pin which has an approximately rectangular shape and has a second centre-line which extends parallel to the longitudinal axis and is traversed by said second measurement axis, the four strain gauges (A1,B1,C1,D1) of the first Wheatstone bridge measurement circuit arranged on the first surface portion are not angularly interposed between the strain gauges (A2,B2,C2,D2) of the second Wheatstone bridge measurement circuit, arranged on the second surface portion, said pedal characterised in that: said first surface portion and said second surface portion housing the eight strain gauges (A1, B1, C1, D1) (A2, B2, C2, D2) are arranged side by side on said pedal-pin so that their section orthogonal to the longitudinal reference axis is contained within an angle less than 150° and occupies an arc contained in a semicircle in order to leave the other semicircle free from strain gauges and/or Wheatstone bridges, said first surface portion and said second surface portion of said pedal-pin are angularly arranged, one next to the other and adjacent around said longitudinal axis. said first surface portion and said second surface portion housing the eight strain gauges (A1, B1, C1, D1) (A2, B2, C2, D2) are arranged side by side on said pedal-pin so that their section orthogonal to the longitudinal reference axis is contained within an angle less than 150° and occupies an arc contained in a semicircle in order to leave the other semicircle free from strain gauges and/or Wheatstone bridges, said first surface portion and said second surface portion of said pedal-pin are angularly arranged, one next to the other and adjacent around said longitudinal axis.