This is a tail tidy for an Aprilia RS / Tuono 660.
The braces are made of 20x2mm aluminium and are 120mm long. I have not tried printing these and would not advice doing so.
The distance to the tire is enough for solo riding but I did not test it with a bigger passenger.
I advice printing everything in ABS oder PETG.
You will need to tap M5 and M3 holes like shown in the photos.
The author marked this model as their own original creation.