POC helmet gopro adapter
thingiverse
This is a simple adapter to add a GoPro flat mount with 40mm hole distance to a bicycle helmet. This flat mount *should* fit: https://www.thingiverse.com/thing:40282 You need a 30mm M4 screw to fix the adapter with a flat mount to your helmet.
Download Model from thingiverse
With this file you will be able to print POC helmet gopro adapter with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on POC helmet gopro adapter.