Correct me if I'm wrong, but isn't the "A256A", the hardware kit for attaching the A755N?? Givi's part numbering system can can be a little confusing, make sure of what you are getting before you place your order. I just ordered an A240 windscreen with the A257A 919 specific fitment kit. Looks very similar in shape, size and function to the A755N, but the entire unit is transparent with light smoke. I'll let you know my thoughts on it when it arrives. Best of luck!
Putting the fun in dysfunctional for over 40 years!