A Brighton schoolboy died after going head first over the handlebars of his bicycle.
An inquest was told that David Hanna, 18, of Swanborough Drive, Whitehawk, fell off his bike after the chain slipped.
He had just finished his A levels at Cardinal Newman Catholic School in Hove when the accident happened and had been hoping to go to university.
He suffered head injuries from which he never recovered and died six days later – on Tuesday 6 July – in the Hurstwood Park Neurosciences Centre in Haywards Heath.
He was not wearing a cycle helmet and had been riding at 20mph to 25mph – not excessively fast or dangerously, the inquest was told.
Brighton and Hove coroner Veronica Hamilton-Deeley said that no one else had been involved and recorded a verdict of accidental death.