US Patent 8025597 Bicycle component position correcting device

A bicycle component position correcting device is basically provided with a first sensor, a second sensor, a comparison unit and a position adjuster. The first sensor detects a current absolute value of a positioning angle of a movable part of a bicycle component. The second sensor detects both a movement direction of the movable part and an amount of movement of the movable part. The comparison unit compares the current absolute value of the positioning angle of the movable part to a prestored reference value of the positioning angle of the movable part in response to a component operation command. The position adjuster selectively outputs an adjustment command to the movable part that adjusts the absolute value of the positioning angle of the movable part in accordance with both detected results of the first and second sensors.