It happened on the B3081 near Verwood - he had to be cut free by firefighters.
Biker Dies After New Forest Crash
Police say a motorcylist has died in hospital two weeks after a crash in the New Forest.
Officers were called to the A337, between Lymington and Everton, at 4.45pm on September 19 to reports of a three vehicle collision.
The collision involved a Volkswagen Golf, a Volkswagen Polo and a motorcycle.
The 73-year-old motorcyclist from the New Forest was taken to Southampton General Hospital with life-threatening injuries.
He died as a result of those injuries on Tuesday, October 4.
Officers are supporting his next of kin and formal identification procedures are ongoing.
Investigations into the exact circumstances of the collision continue and anyone with information is asked to call Sgt Steve Antrobus on 101
Violent crime was up 37% in the last year. Police say it's mainly due to a change in how offences are recorded.
Anne-Marie Ellement took her own life after claiming she'd been raped by two colleagues.
48 Zany Zebras sculptures were sold off to raise money for Marwell Zoo.
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