A pedal for bicycles comprising: a pedal pin which extends along a reference axis and has a first axial end structured to be coupled to a pedal crank of a bicycle and a second axial end opposite to said first end, a pedal body that comprises a hub coupled in a freely rotatable manner to said pedal pin so as to be able to rotate around said reference axis. On said pedal pin there are at least two inner chambers having a circular section and extending along said reference axis coaxial thereto, a sensor circuit coupled to the pedal pin, an electronic circuit configured to determine the mechanical deformation of the pedal pin, an electric storage device arranged in an inner chamber.

A pedal for bicycles comprising: a pedal pin which extends along a reference axis and has a first axial end structured to be coupled to a pedal crank of a bicycle and a second axial end opposite to said first end, a pedal body that comprises a hub coupled in a freely rotatable manner to said pedal pin so as to be able to rotate around said reference axis. On said pedal pin there are at least two inner chambers having a circular section and extending along said reference axis coaxial thereto, a sensor circuit coupled to the pedal pin, an electronic circuit configured to determine the mechanical deformation of the pedal pin, an electric storage device arranged in an inner chamber.

A self-powered vibration mechanism is provided that can be mounted on an existing pedal shaft yet operates independent from the existing pedal. Mechanical isolation or mechanical decoupling permits transferring the vibrating energy to the foot rather than to the pedal shaft and the bicycle. In another embodiment, a full removable pedal with self-powered vibration mechanism can replace an existing pedal.

A self-powered vibration mechanism is provided that can be mounted on an existing pedal shaft yet operates independent from the existing pedal. Mechanical isolation or mechanical decoupling permits transferring the vibrating energy to the foot rather than to the pedal shaft and the bicycle. In another embodiment, a full removable pedal with self-powered vibration mechanism can replace an existing pedal.

A bicycle pedal system which allows riders to engage the sole of their shoe with the pedal to feel an operative engagement therebetween during normal riding conditions, while allowing the rider to easily detach the shoe from the pedal should the need arise. The system includes a shoe sole wearable on the foot of a user, wherein the shoe sole includes a lower surface and a plurality of first engagement elements extending from the lower surface. The system further comprises a bicycle pedal including a first surface, an opposing second surface, and a plurality of second engagement elements extending from the first surface and being complimentary to the first engagement elements. The shoe sole is configured to be selectively engageable with the pedal, with the first engagement elements being registered with the second engagement elements when the shoe sole is engaged with the pedal.

A pedal thickness supplementary device is provided. The pedal thickness supplementary device includes two supplementary assemblies and a plurality of fasteners. The two supplementary assemblies disposed on two corresponding sides of the pedal respectively, in which the two supplementary assemblies clamp and couple to the pedal, so that the thickness of the two supplementary assemblies clamping to the pedal is thicker than the thickness of the pedal. Further, each of the two supplementary assemblies includes two anti-slip portions, a plurality of first fasten grooves, a plurality of second fasten grooves and a through hole.

A pedal thickness supplementary device is provided. The pedal thickness supplementary device includes two supplementary assemblies and a plurality of fasteners. The two supplementary assemblies disposed on two corresponding sides of the pedal respectively, in which the two supplementary assemblies clamp and couple to the pedal, so that the thickness of the two supplementary assemblies clamping to the pedal is thicker than the thickness of the pedal. Further, each of the two supplementary assemblies includes two anti-slip portions, a plurality of first fasten grooves, a plurality of second fasten grooves and a through hole.

A monitoring system includes a shoe and a sole integrated into the shoe. The monitoring system also includes a connection mechanism attached to an underside of the sole and is shaped to connect the sole to a pedal. A pressure sensor is incorporated into the shoe that senses a force exerted on the pedal when the shoe is connected to the pedal through the connection mechanism.

A crank impact and wear protection article is disclosed. The crank arm includes a crank body and an impact and wear protection article coupled with the crank body.

A crank impact and wear protection article is disclosed. The crank arm includes a crank body and an impact and wear protection article coupled with the crank body.