A video has emerged showing a motorcyclist losing control and being thrown off of his bike at extremely high speed along Old Coast Road in Dawesville.
Update: The video has since been taken down.
WARNING: Graphic content. May disturb some viewers.
Holdfast Motorcycle Club's YouTube channel uploaded the video, which first shows a motorcyclist filming his speedometer as he races down Old Coast Road.
The motorcyclist hits 199km/h before a fellow motorcyclist speeds past him in the right-hand-lane.
The motorcyclist in the right hand lane is seen braking to turn before losing control, being thrown off his bike and skidding along the bitumen on his arm and shoulder.
The second part of the video shows the man's bike flying through the air with shrapnel being thrown from the chassis.
Passersby run to help the man, who is lying on the side of the road in a daze with visible injuries sustained to his upper body.
The channel that uploaded the video commented that the rider is being treated for a number injuries including a broken collarbone, three broken ribs and a punctured lung.
Old Coast Road has seen a number of motorcycle accidents. In 2019 there were a number of accidents along the road - including a motorcycle crash in March that left a man in critical condition and another in July that resulted in the death of a 29-year-old man.
WA police have been contacted for comment.