The Front End Fixing Kit A9738051
It is sold separately from the screens and fits ALL Rocket screens including Fly. If you sell you will need to buy a new set as the flyscreen kit is just the screen and mounting brackets and does not include the 4 fork fixing clamps it bolts too.
I have the fork fixing kits available here in classifieds and I believe they may be or have been discounted in the US recently too.
These are Au$143.20 here in Oz. Mine are Au$110 .