Police investigating a serious road traffic collision in North Petherwin, Launceston, at around 3.45pm, on Thursday 29 April, are appealing for witnesses to come forward.
As a result of a lorry and a car slowing to a stop on a small rural road, the rider of a quad bike took evasive action, causing him to become unseated.
The rider, a man in his 60s, sustained what could be life-changing injuries and was taken to Derriford Hospital by air ambulance.
Once a full examination of the scene was conducted the road was re-opened.
Police would like to thank the public for their patience while the road was closed.
If you witnessed the incident or have any information that could help the police with their enquiries, please email email@example.com or call 101, quoting log 0393 of the Thursday 29 April.