The file 'Gopro MTB Front Suspension Mount 3D Printer Model' is (stl) file type, size is 439.3KB.
mounted with zip tie. This part is designed for 40 mm. Preferably mount with a piece of inner tube because of the danger of getting it into your spokes. This also will prevent for paint scratches.
I printed this without support with only helper discs.
GoPro_Front_Suspension_Mount_2.stl | 3.5MB |