Dirt bike gangs are terrorising quiet Sydney suburbs - with a petrol station worker bludgeoned with a crowbar during a vicious robbery Unregistered dirt bikes have been used increasingly by criminals in NSW A Sydney service station worker was bashed in a robbery on Saturday The recent attack took place during a robbery using an unregistered dirt bikeBy Tom Place For Daily Mail Australia Published: 02:11 GMT, 12 March 2019 | Updated: 02:14 GMT, 12 March 2019 Viewcomments Gangs of criminals have increasingly been using unregistered dirt bikes without number plates in a string of recent attacks. The series of attacks using dirt bikes without registration plates most recently resulted in the bashing of a petrol station worker during a robbery at Ingleburn in New South Wales on Saturday. The worker was bashed in the head using a crowbar up to 16 times as he tried to escape from the thieves who later robbed the store for cigarettes and cash. Scroll down for video Unregistered dirt bikes have been used in a string of crimes committed with most recently resulting in the bashing of a petrol station worker 'I think I got more than 15 or 16 blows minimum,' he said to https://twitter.com/7NewsSydney/status/1105214010259996672. 'He started hitting me, like an intention to kill.' Attacks and robberies using dirt bikes not wearing licence plates have increasingly been linked to criminal actitivty across the state. Dirt bikes are currently allowed to be unregistered in NSW as long as they are only used on private property, however many criminals are exploiting this law. The bikes are fast and riders often wear full face covering helmets and motorcycle gear that makes them hard to identify. Police that discover dirt bikes on the road unregistered and without compulsory third party insurance can fine the rider $2,000. The man was bashed in the head with a crowbar up to 15 or 16 times through the window of his car as he was trying to escape Read more: Share or comment on this article: All rights reserved for this news site dailymail and under his responsibility