Eight dirt, road and quad bikes have been seized in the past seven days as police vow to crack down on illegal riding fearing a death is "only a matter of time".
Counties Manukau police fear the upsurge of illegal dirt bike riding and dangerous stunts on the region's roads is putting lives at risk.
They fear the upsurge of illegal dirt bike riding and dangerous stunts executed on the region's roads is putting lives at risk and it is only a matter of time before a rider dies.
Police today revealed there had been at least three serious traffic crashes involving dirt and quad bikers on South Auckland roads, severely injuring one rider.
Last weekend, police impounded three dirt bikes and two road bikes after reports of a group of riders travelling around Māngere's Walter Massey Park and the Howick Golf Course at Musick Pt, Bucklands Beach, on Sunday afternoon. Their antics damaged turf and put bystanders in danger.
Some of the riders dumped their bikes in the bushes and fled on foot when police arrived.
Thanks to the help of golfers at the course and members of the public, officers found and seized five bikes, one of which was stolen.
A youth was apprehended at the scene and inquiries are ongoing to identify other riders.
Counties Manukau Police also seized a quad bike last Friday after it was observed ripping up turf at Walter Massey Park.
The council was notified and further action is likely to follow against the rider.
Police also received a report of a crash where a quad bike rider without a helmet was injured after he was seen coming off a bike on Yates Rd in Māngere.
Officers went to the crash scene but no rider or bike was found on the road. Further inquiries found a male at a nearby address with "significant" injuries being treated by ambulance.
Two bikes were impounded from the property and police were unable to rule out charges being laid against the rider.
In the past week police have also received reports of dirt bikers being injured after crashing into vehicles in Ōtara and Māngere Bridge, including on February 19, when a male who wasn't wearing a helmet drove through a red light in Ōtara and crashed into another vehicle.
He was taken to hospital with moderate injuries. Inquiries are ongoing and charges are likely.
Counties Manukau road policing manager inspector Kay Lane warned it is only a matter of time before a rider was killed.
"In general, these dirt bike riders show little regard for their own safety or the safety of those around them on the roads.
"We are continuing to see riders put themselves and other motorists in significant danger by driving recklessly, carrying out dangerous stunts and failing to wear helmets.
"We are appealing to these riders to stop putting themselves and other road users at risk. It may seem like fun until one of your mates is seriously hurt," said Lane.
She said it was illegal to ride a dirt bike on the road unless it was roadworthy with a warrant and registration. Anyone riding a bike with an engine capacity above 50cc needed to have a motorbike licence.
Police were appealing to parents and family members to take responsibility for the actions of these riders, some of whom were youths, and ensure they were acting safely and wearing helmets.
"The last thing we want is to have to knock on your door and tell you that your loved one has been killed or seriously injured in a crash," said the inspector.
Police were also continuing to investigate the Waitangi Day mass bike ride, which caused significant travel disruption across Auckland.
Officers were reviewing dozens of hours of CCTV footage of the bike ride.
So far, 170 vehicles have been identified as taking part in the ride and police were continuing to identify those riders and vehicles involved in traffic offences with a view of taking further action.
Lane said police now needed the public to help identify bike riders responsible for offending on our roads and to locate their bikes.
"We want to hear from family members or neighbours who can provide information about the identity of these riders and/or the properties where these bikes are located.
"Police will continue to seize and impound illegal road and dirt bikes and take follow up action against those responsible for offending."
Police ask anyone with footage of dirt bike riders offending on the roads to upload it to: https://dirtbike.nzpolice.org/