ATC 3 test run on a kitesurfer Bar 2008
ATC 5 Test head cam
How to make a helmet mount camera
Lots of places to mount a cam on it

Check out e.bay for ALUMINIUM ROUND BAR
2 Stainless steel penny washers / 2 Stainless steel bolts 6mm
Cut the aluminium bar to your required length
Drill 5mm holes in both ends and tap out with a 6mm tap
Put one washer under the padding inside the helmet then screw the bolt into the aluminium bar
Fit the mounting bracket for the cam on the bar
Then put the top washer on and bolt it down.
Its to stop the bracket slipping off after a wipe out
I have put a safety line on this one hopefully I will not need it or I will be in big trouble with the wife as I lost my ATC 3K action cam in the water when I was in Egypt