I usually wear my GoPro attached to my Sweet Strutter helmet. The curvature of the helmet doesn’t quite match the profile of the curved GoPro mount. So although the mount is secure there is a pretty good chance that a hit will knock it clean off. I have therefore installed a leash system.
There are a number of arguments for and against attaching the camera with a leash. Most of the against centre around the risk of snagging. At the end of the day I have thought carefully about the pros and cons and have decided that I will use a leash.
The system consists of a length of 2mm climbing accessory cord and a micro S-Biner. Anything thicker than 2-3mm will not thread through the gap on the GoPro housing/hinge. The cord was cut to approximately 30cm long and the ends were sealed. This makes the leash long enough for me without too much excess cord being on show.
One end of the cord was then thread through the backdoor hinge of the GoPro. It was easier to remove the door for this. I then tied the knot to secure the cord at the camera end. Another loop was tied in the other end and a S-Biner
attached. This allows me to remove the GoPro from my helmet without having to mess around with knots.
There is a risk that the hinge could fail if the camera is ripped off with enough force. If that does occur water will get into the camera. Putting a couple of loops of leash or even a larks foot knot around the thumbscrew will help prevent too much force being places on the hinge.
Newer GoPro cases do not have the exposed metal bar on the hinge, as a result I now use a lark foot knot to attach the leash to the thumbscrew.