Here's a picture of the Goldwing 'Nose Mask' on my old F6B. It's a Honda OEM accessory and costs about $75.



The F6B lowers are a little shorter than the regular Wing. You could shorten the mask at the bottom attachment points, or do what I did. I found some nice wire ties at a computer store. They are like fat plastic pipe cleaners. I just wrapped them around the crash bars and attached the clips at the bottom of the mask to them. It isn't a perfect fit but pretty close. The rest of the mask fits perfectly.