A hybrid bicycle pedal and crank system includes a chain ring, a foot peg mount disposed on at least one side of the chain ring, and a foot peg rotatably mounted to the foot peg mount on at least one side of the chain ring and configured to rotate from a pedaling position in which the foot peg is offset from a center axis of the chain ring to a fixed foot peg position in which the foot peg is fixed in alignment with the center axis of the chain ring.

A hybrid bicycle pedal and crank system includes a chain ring, a foot peg mount disposed on at least one side of the chain ring, and a foot peg rotatably mounted to the foot peg mount on at least one side of the chain ring and configured to rotate from a pedaling position in which the foot peg is offset from a center axis of the chain ring to a fixed foot peg position in which the foot peg is fixed in alignment with the center axis of the chain ring.

A crank extension device for an overhead crank. The device comprises a shell configured to fit over a crank handle, and the shell comprises an aperture for passage of the crank shaft. The device also comprises an extension connected to or integral with the shell, wherein the extension has an extension axis offset from a rotational axis of the crank shaft. Methods of modifying an. overhead crank and for using a crank extension device.

A crank extension device for an overhead crank. The device comprises a shell configured to fit over a crank handle, and the shell comprises an aperture for passage of the crank shaft. The device also comprises an extension connected to or integral with the shell, wherein the extension has an extension axis offset from a rotational axis of the crank shaft. Methods of modifying an. overhead crank and for using a crank extension device.

A method for automatic retraction of a pedal of a bicycle. A first electric actuator is provided on a crank, and the pedal is driven to be retracted by the first electric actuator to complete a first retraction, so that long side of the pedal is changed into a front-rear direction from a left-right direction; a second electric actuator mounted on a bicycle frame drives the crank to idle, and the pedal is gradually straightened in the first retraction process to be parallel with the plane of the bicycle frame to complete a second retraction of the pedal. Using this method, the pedal can be conveniently retracted, and the transverse (left-right) occupying space is minimized, thereby facilitating the automatic storage and saving the storage space.

An exercising apparatus for exercising at least one limb, having a supporting frame and at least one crank which is arranged on a rotation shaft assigned to the supporting frame, and having at least one limb support which can be fastened to the at least one crank at different radial distances from the rotation shaft. A detector is provided for detecting the radial distance of the at least one limb support from the rotation shaft. The invention further relates to a limb support and to a method for determining the force acting on a limb support of an exercising apparatus.

A pedal slider assembly that allows for a normal pedal affixed to a normal bicycle to slide laterally outwardly away from the bicycle frame and back inwardly towards the bicycle frame allowing the rider to find their bodies natural pedal placement as it travels through the rotational pedaling path based on their specific skeletal structure restrictions, (those being the width of an individual's hips, knees, and ankles) as those positions dictate the center line of the user and as those positions are directly affected by the pedal relationship to the center line of the bicycle frame, additionally there is a multitude of lateral movement length options for the rider to utilize to garner specific exercise benefits.

Disclosed is a hybrid bicycle pedal and crank system that transforms into fixed foot pegs for operating an ebike and includes at least one foot peg mount, at least one foot peg mount bearing, at least one inner crank arm, at least one outer crank arm, at least one crank arm lock pin, and at least one foot peg configured to be mounted to the at least one foot peg mount through the at least one foot peg mount bearing at an end of the outer crank arm, wherein the at least one inner crank arm and the at least one outer crank arm are configured to be rigidly locked in an extended position by the crank arm lock pin locked into a fixed position in a locating hole on the inner crank arm.

Disclosed is a hybrid bicycle pedal and crank system that transforms into fixed foot pegs for operating an ebike and includes at least one foot peg mount, at least one foot peg mount bearing, at least one inner crank arm, at least one outer crank arm, at least one crank arm lock pin, and at least one foot peg configured to be mounted to the at least one foot peg mount through the at least one foot peg mount bearing at an end of the outer crank arm, wherein the at least one inner crank arm and the at least one outer crank arm are configured to be rigidly locked in an extended position by the crank arm lock pin locked into a fixed position in a locating hole on the inner crank arm.

A pedal slider assembly that allows for a normal pedal affixed to a normal bicycle to slide laterally outwardly away from the bicycle frame and back inwardly towards the bicycle frame allowing the rider to find their bodies natural pedal placement as it travels through the rotational pedaling path based on their specific skeletal structure restrictions, (those being the width of an individual's hips, knees, and ankles) as those positions dictate the center line of the user and as those positions are directly affected by the pedal relationship to the center line of the bicycle frame, additionally there is a multitude of lateral movement length options for the rider to utilize to garner specific exercise benefits.