Meet the Feiyu WG: a 3-axis wearable gimbal for GoPro cameras. It lets you mount the gimbal in different orientations. You can use it on your helmet, bike or a selfie stick to capture all the action with your GoPro camera. The WG is compatible with other comparable action cameras as well.
The WG lets you mount your camera to the left, right, upright, or inverted. Just bring your GoPro, and you are set. More information is available here.