A Guernsey man and woman are receiving hospital treatment after a crash at Trelill, Bodmin.
Emergency services were called around 11am on Friday 9 August to a collision between a blue Land Rover Defender and a Triumph motorcycle on St Teath Road.
Devon and Cornwall Police have confirmed the Guernsey riders, who are both in their 50s, have both been injured.
The male was airlifted to Derriford Hospital after sustaining 'serious life-changing' injuries'.
Officers are appealing for witnesses and dashcam footage.

Commodore Clipper breaks mooring ropes in Storm Austen
70 mph winds batter Guernsey
Haut Du Mont: Jury fails to reach verdict on third gas worker
Schools in Guernsey to close for Storm Austen
States of Guernsey 'carefully monitoring' forecasts for Storm Austen
Haut du Mont: Gas workers convicted of manslaughter
Guernsey government websites go offline amid security concerns
Guernsey mum creates autism awareness books inspired by son