A bicycle gear changing apparatus is basically provided with a controller. The controller is configured to be operatively coupled a first input to receive first shift signals. The controller is configured to be operatively coupled to a second input to receive second shift signals. The controller outputs control signals to control at least one of a first gear changing device and a second gear changing device in accordance with a first prescribed shift route in response to receiving the first shift signals. The controller outputting control signals to control at least one of the first and second gear changing devices in accordance with a second prescribed shift route different from the first prescribed shift route in response to receiving the second shift signals.