POLICE are calling for witnesses to a serious crash that happened last month in Hazelmere.
It is alleged about 3.50pm on Thursday November 30 a black and gold Kawasaki motorcycle was travelling north on Stirling Crescent when it collided with a black BMW SUV.
The 35-year-old man from Helena Valley, who was riding the motorcycle, was taken to Royal Perth Hospital with serious injuries.
The 48-year-old male driver of the BMW was not injured.
Major crash investigators would like to speak to anyone who may have seen the crash or the vehicles prior to the crash.
Call Crime Stoppers on 1800 333 000.