I tried the GoPro handle bar mount. It broke 1/2 through the first use, a 75 mile ride. No matter how I tightened it, the camera would fall over from vibration. I'd rotate it back to vertical and then it would slowly fall to the side again. Then the plastic mount failed, broke just below the screw. Luckily I was trying to straighten it when is came off in my hand. I returned it to REI.

Plus the footage was not good. Vibrations made it unusable. The road surface was chip seal.