$20
A GoPro mount for ~45mm (1.75-1.77in) rollbars! Made for Blackbird Fabworx GT3 and Hard Dog “Hard Core” MX-5 Miata rollbars, but may fit other brands of the same size OD tubing.
Hardware and thumb screws are included. I can exclude the felt strips if desired, but please note that without the felt the mount's inside diameter is actually 47.6mm. For a sample of the view angle, please see this video: https://youtu.be/dw7-lA42ZP4?si=giAX08noB9zMuwXj
If you rather print this yourself, you can get the model on Printables :)
$20
$20