A representative system includes a personal transportation device with: first and second wheels aligned along an axis; an idler wheel rearward of the axis; a platform configured to support a user in a standing position; electric motors to drive the first and second wheels; first and second hand grips fixed in position at respective locations forward of the platform; and first and second control actuators disposed, respectively, on the first and second hand grips, the first and second control actuators being operative to control rotations of the first and second wheels and configured to be actuated by corresponding thumbs of the user while hands of the user are grasping corresponding ones of the first hand grip and the second hand grip.

A representative system includes a personal transportation device with: first and second wheels aligned along an axis; an idler wheel rearward of the axis; a platform configured to support a user in a standing position; electric motors to drive the first and second wheels; first and second hand grips fixed in position at respective locations forward of the platform; and first and second control actuators disposed, respectively, on the first and second hand grips, the first and second control actuators being operative to control rotations of the first and second wheels and configured to be actuated by corresponding thumbs of the user while hands of the user are grasping corresponding ones of the first hand grip and the second hand grip.

A control device is provided to a human-powered vehicle. The control device includes an electronic controller. The electronic controller is configured to control an air pressure of a tire provided to the human-powered vehicle, based on at least one of a roughness of a road surface on which the human-powered vehicle is traveling or will travel, a slope state related to an advancing direction of the human-powered vehicle, a wet state of a road surface, a traveling state of the human-powered vehicle, and a state of a component mounted on the human-powered vehicle.

A control device is provided to a human-powered vehicle. The control device includes an electronic controller. The electronic controller is configured to control an air pressure of a tire provided to the human-powered vehicle, based on at least one of a roughness of a road surface on which the human-powered vehicle is traveling or will travel, a slope state related to an advancing direction of the human-powered vehicle, a wet state of a road surface, a traveling state of the human-powered vehicle, and a state of a component mounted on the human-powered vehicle.

A control device for controlling a bicycle component in accordance with a seat position of a bicycle seat is provided. The control device may comprise a transmitter configured to transmit a signal relating to the seat position of the bicycle seat, and a mounting structure configured to detachably mount the transmitter to at least one of a bicycle seat post, a bicycle frame, and the bicycle seat.

A control device for controlling a bicycle component in accordance with a seat position of a bicycle seat is provided. The control device may comprise a transmitter configured to transmit a signal relating to the seat position of the bicycle seat, and a mounting structure configured to detachably mount the transmitter to at least one of a bicycle seat post, a bicycle frame, and the bicycle seat.

The invention includes apparatus and methods of use for an adjustable disarticulated seat, which in a preferred embodiment may include one, or a plurality of independently or synchronously adjustable disarticulated inserts positioned within insert interface apertures on the distal extended portion of a saddle. An actuator element may be responsive to the one or more disarticulated inserts through one or more cords configured to be retracted or release in response to the action of the actuator causing the extension upward or release downward movement of the one or more inserts within the insert interface aperture.

The invention includes apparatus and methods of use for an adjustable disarticulated seat, which in a preferred embodiment may include one, or a plurality of independently or synchronously adjustable disarticulated inserts positioned within insert interface apertures on the distal extended portion of a saddle. An actuator element may be responsive to the one or more disarticulated inserts through one or more cords configured to be retracted or release in response to the action of the actuator causing the extension upward or release downward movement of the one or more inserts within the insert interface aperture.

A leather bicycle saddle includes a leather cover, an arc support supporting the leather cover and having a front end terminating in a head abutment portion and a rear end affixed to a rear bottom side of the leather cover, and an adjustment device including a screw bolt holder affixed to a front bottom side of the leather cover, an adjustment screw bolt abutted against the screw bolt holder. The adjustment seat includes a seat block defining a mounting slot and a screw hole, and a stop block. The stop block is engaged into the open end of the mounting slot and stopped at the head abutment portion of the arc support against the close end of the mounting slot. The screw hole of the seat block receives the adjustment screw bolt.

A leather bicycle saddle includes a leather cover, an arc support supporting the leather cover and having a front end terminating in a head abutment portion and a rear end affixed to a rear bottom side of the leather cover, and an adjustment device including a screw bolt holder affixed to a front bottom side of the leather cover, an adjustment screw bolt abutted against the screw bolt holder. The adjustment seat includes a seat block defining a mounting slot and a screw hole, and a stop block. The stop block is engaged into the open end of the mounting slot and stopped at the head abutment portion of the arc support against the close end of the mounting slot. The screw hole of the seat block receives the adjustment screw bolt.