The passenger who was riding pillion on a motorcycle in Huntly on Friday has been named.
Police said he was Lenny Laverick, aged 15 years of Ngatea.
Police still wish to speak to anyone travelling along Te Ohaki Road, Huntly at around 6.30pm who witnessed the accident or who saw a Harley Davidson motor bike before the incident.
If anyone has any information they should contact the nearest Police station.