Police said the accident occurred just after 9am when a Holden Commodore, driven by a 77-year-old man from Tomerong, had travelled east along Turpentine Road and was waiting to turn right onto the highway.

It is alleged a 64-year-old Kings Point man was riding a Harley Davidson north on the highway, when a vehicle in front of him made a left turn into Turpentine Road.

Police allege the Commodore turned right onto the highway, with the bike colliding with it.

The rider was thrown from the bike and landed heavily on the roadway, suffering multiple injuries including a fractured pelvis, left femur, left tibia, left fibula, left heel and a dislocated right shoulder.

The rider was treated at the scene by paramedics and taken by road to the ambulance rescue helicopter, which had landed at the United Log Cabin Service Station at Falls Creek.

After being stabilised, the rider was then flown to a specialist hospital for orthopaedic care at St George Hospital.

Investigations into the accident are continuing.