The tragic and completely avoidable death of a 14-year-old boy has sparked calls by a NSW coroner to ban the sale of motorised bicycles.
James Ciappara was killed in October 2013 after his modified mountain bike crashed into a Honda minivan at Miller in Sydney's southwest.
The boy, who was thrown from his bike, was then hit by another vehicle.
In handing down his findings on Friday, Deputy State Coroner Paul MacMahon said James' death was a tragedy for his family and the community.
"(It) was completely avoidable. It came about as a consequence of youthful bravado mixed with access to an inherently dangerous piece of machinery."
During the inquest last year, the coroner heard police had initially pursued James through suburban streets because he was not wearing a helmet and had no reflectors or lights on.
Deeming it too dangerous, they eventually called off the chase.
Mr MacMahon said police acted responsibly and found James knew he was being pursued and tried to avoid them.
As to the two drivers involved in the fatal accident, Mr MacMahon said "there was nothing either of them could have done to avoid the collision".
All petrol-powered bicycles have been banned on NSW roads since October last year but can still be used in other areas, such as on private property.
Mr MacMahon said it was clear the motorised bikes were dangerous.
"I am satisfied that it would be in the public interest for consideration to be given to implementing a ban on the sale of such vehicles and the conversion kits necessary to convert ordinary bicycles to motorised bicycles."