gs tank bag

I've been having a slow trawl through some kit in my spare room (too cold to do the same in the garage🥶). I found this handy bag: It's an oddments bag (spare keys, wallet, passport etc), make by Kahedo, who make tank bags and other luggage for Touratech and Wunderlich. It was designed to...

I recently bought a tank bag from a forum member but I think I bought the wrong bag. It is a GS tank bag large version. I have a 2012 GSA but the bracket for the bag seems too big. The part number on the bag is 71607713015. Can anyone help? If it is wrong I will advertise it on here again...