Coroner for North Wales East and Central John Gittins opened inquests into the deaths of Stephen Hill, of Cliff View, Frodsham, and Nigel Davies, 48, of Penyffordd, who were killed in the collision involving six bikes and one car on the A5104 between Pontblyddyn and Penyffordd in Flintshire on June 1.
Mr Hill, an HGV driver, and two of his friends were riding towards Penyffordd when he is believed to have collided with an oncoming car.
Mr Gittins said that Mr Davies, who was travelling behind the car, was then hit by one of the oncoming machines.
Both men were certified dead at the scene and it is understood that a third rider is still seriously ill in Stoke Hospital.
A postmortem by Home Office pathologist Dr Brian Rodgers revealed that Mr Hill died of multiple injuries and Mr Davies of head injuries.
The coroner adjourned the hearing to a provisional date in November but said that because of extensive police investigations a further adjournment might be necessary.