This is not an original Honda part or replacement for one, it is a custom part for better mounting of 20mm wide straps that end in a loop on the Honda CB1100.
Make sure you have good layer adhesion and test the print, don't blame me for dropped luggage. Since it will be exposed to nature you should probably not use PLA.
The strap gets inserted through the slot and a small tube section gets inserted that then gets fixed from the sides with button-head screws. The tube section can be printed or for added strength use a metal pipe with an OD of 6mm and ID of 3mm cut to size.
Made with the personal version of Autodesk Fusion 360 therefore non commercial only.
Source file included.