I printed it in prusament ASA jet black to have a higher temperature and UV resistance.

It is designed to mount it on a stem with a diameter of 32 mm. The part it self has a ID of 34 mm, because of the rubberinlay.

needed materials

-the original mountingplatte 
-the threaded inserts and screws from the original part OR super glue to connect the parts
-19 x 100 x 1 mm rubber piece
-2 zip ties

possible compatible models (same mounting plate)

btwin count4            (tested)
btwin count8
btwin count14+
btwin500