Police have named the man who died after a road traffic collision on Leeds Road in Bradford last week.
Nathan Thompson, 32 from Leeds was on his motorbike when it was in collision with a Honda Jazz vehicle at 23.45 on 1 February.
The driver a 28 year old man was arrested at the scene and has since been released on bail pending further enquiries.
Officers are continuing to appeal for witnesses to the collision or anyone who may have dash cam footage to come forward.
Information can be given via 101