Quick bike mounted camera test, somewhat Raw Onboard 

As you can clearly see, it's not great the GP5 doesn't mitigate those high frequency vibrations transfered through the mount/handlebars, its partially caused by the bike (Z750 gen1 has quite some vibrations) from 5 to 9k RPM the image is wavy then it settles quite a bit and the footage is usable.
The audio has some flaws due to some things inside my recording tailbag, however thats not the point of this video.
Rider: Carbon
Bike: Kawasaki Z750 2006 - ZX6RR Front end - Chimera
Exhaust: Arrow + DB killer
Video: Gopro Hero 5 Black 2,7K30 Auto Shutter speed, Stabilisation - ON
Audio: Zoom h1n, auto + lo-cut 80hz