The blonde hunk turns 21 in June (03) and is swapping his 125cc off-road bike for a larger model - a 750cc machine with a top speed of over 160 mph.
But his father and grandmother Queen Elizabeth II are both worried he could get into an accident.
An insider tells British tabloid THE SUNDAY STAR, "Scrambling is one of William's favourite hobbies and he has been scouring the motorbike mags looking for a new machine.
"He has been counting the days until he reaches his 21st birthday so he can get his hands on a bigger bike, but like any dad, Charles is worried."18/05/2003 13:57