This 3D-printed adapter plate allows you to reuse your OEM Nav Cradle fasteners and pinch plate to mount a Garmin Tread or Overlander cradle to the BMW Nav bar on an R1200/R1250GS or GSA. Also works to mount a Ram EZ-Roller iPad Mini Cradle to the Nav bar.
Only includes the 3D-printed adapter.
More details on using a Garmin Tread SxS 8" on an R1200GS, including how to print this plate for free: WunderLINQ Tread SxS 8 Review