Anthony Kyvelos, of Fogelsville, was involved in an "unwitnessed bicycle accident" in the 3200 block of Shale Head Road in Weisenberg Township at approximately 7:30 p.m. on July 31, according to the Lehigh County Coroner's Office.
He was pronounced dead at Lehigh Valley Hospital, Cedar Crest on Wednesday, authorities said.
An autopsy performed Friday confirmed his cause of death to be blunt force head injuries, the coroner's office said. His manner of death was confirmed to be an accident.
Additional details were not released.
Click here to follow Daily Voice West Chester and receive free news updates.