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.

User pays when Guernsey roads have to close
Channel Islander abandons Bordeaux as the flames 'arrive at the city's gates'
Annual Guernsey Scarecrow Festival set to raise thousands for charity
Channel Islands face 'physical' Poland test
Baby born on Guernsey's Marine Ambulance
New interim leader for Guernsey's healthcare system
Guernsey's reservoir levels falling after prolonged dry spell
Guernsey's Commonwealth flag carrier in early Games win