The man who was in hospital following a serious road traffic collision on Station Road, Clydach on Thursday 9th June has died.
The 55 year old motorcyclist, who can now be named as Barry Baymhan, was taken to hospital after he was in a collision with a Volvo car at approximately 10.50am.
Gwent Police Collision Investigation Unit is investigating and would appeal for any witnesses to the collision to call 01633 642404.