Derailleur control device and method for controlling the front derailleur

摘要

A derailleur control apparatus (110) comprises a control unit (130) that receives shift control signals. The control unit provides a first signal to operate the derailleur a first distance from a first sprocket to a second sprocket in response to a first shift control signal received while operating in a riding mode, and the control unit provides a second signal to operate the derailleur a second distance less than the first distance in response to a second shift control signal received while operating in the riding mode.