You are not permitted to download, save or email this image. Visit image gallery to purchase the image.
The crash happened at the intersection of Shands and Hamptons Rds, Prebbleton, about 10.45am on Friday.
St John spokesman Gerard Campbell said the man has been transported to Christchurch Hospital with serious injuries.
A crew from the Wigram Fire Station assisted St John and police at the crash scene.
The injured man is understood to be the motorcyclist.
The intersection was not closed as a result of the crash.
Meanwhile, another crash between a motorcycle and a truck happened at the intersection of Canterbury and London Sts in Lyttelton about 7.20am. A police spokeswoman said there were no injuries in this crash.