He died at the scene.
An hour later a 42-year-old rider was fatally injured after a car lost control in Hay Point, south of Mackay, and veered onto the wrong side of the road into the oncoming bike.
He was taken to Mackay Bay Hospital but died a short time later.
Meanwhile, a 39-year-old man is undergoing surgery at a Brisbane hospital for extensive head and arm injuries after he was struck by a ute in Bundaberg on Friday night.
The man had just crossed Walker St with a 40-year-old woman when he went back onto the road for an unknown reason and was hit by the vehicle.
He remains in a serious but stable condition. The woman was treated for shock while the 28-year-old driver was not physically injured.