This mount is for Pinarello Dogma F8/F10/F12, Prince (MY17+), Grevil, K8/K10, Dyodo, Paris & Gan seat post, allowing you to mount any accessory with a gopro mount
And following fastener1 x M4x16mm
3D printing settingsI suggest printing this in nylon fiber with carbon or something similar.
Use 0.2mm layer height with at least 50% infill