Years ago I was lucky enough to bag a new old stock item from a company that mainly did parts for Ducatis. A company called Pro Italia used to make rear sets and fork braces for the carbed Hinckley bikes. Fork braces always split opinion as how effective/necessary they are, I have found under normal use you won’t feel anything but there was a change in the front end feel under braking/turn in plus it’s neater eliminates the brake hose brackets and looks trick.
It utilizes the original mounting points and looks to be a very effective design.