Gwent Police is appealing for witnesses following a hit and run.
A 65-year-old motorcyclist from Caerphilly was taken to the Heath Hospital with injuries following the collision on Monday September 17.
The accident happened on the Llanbradach roundabout on the A469 at approximately 12.45pm.
Police have said the collision as between a blue and white BMW motorcycle with a side car and small red car which left the scene.
Gwent Police would like to appeal for the driver of the red car to contact them or any witnesses to the incident to contact the Collision Investigation Unit on 01633 642404.