This is a top case that was installed on a Cygnus X 4th generation. I had the motorcycle shop remove it, so I believe everything needed for installation is included. I don't know the details, so I may not be able to answer your questions. I am selling it because I sold the vehicle. As shown in the pictures, it was used and is not new, but I think it can be used without any problems. Please take a good look at the photos and only purchase if you understand that it is a used item. Yamaha/YAMAHA/Cygnus/Cygnus/Rear Box/Cygnus X/SE44J/SAE5J/5UA/Cygnus/SE12J/SED8J/Cygnus X/1st Gen/2nd Gen/3rd Gen/4th Gen/5th Gen/Custom Base/Genuine/SR/Domestic/Taiwan/125cc/155cc/X-SR