Dash cam vision shows the moment a cyclist was clipped by a trailer in Mandurah on May 4.
About 1:45pm, the rider was crossing the Murdoch Drive and Mandurah Road intersection, without a helmet, when he was clipped by a trailer being towed by a car.
The man was witnessed on the ground as paramedics assessed him at the scene.
He was taken to Royal Perth Hospital with head injuries and a dislocated shoulder.
The rider wasn’t wearing a helmet.