Thank you for viewing. This is a rear seat for the GSX-S1000, modified to mount a GIVI base plate for motorcycles, allowing the attachment of a GIVI rear box. You don't need to install a separate stay to attach the rear case; you can simply replace the rear seat to mount the rear box (see photos). Since a stay is not required, the installation looks clean and doesn't have a stretched-out appearance when the box is attached. Currently, there is no looseness, and it can be used without any problems, but please use it at your own risk regarding the fixing.