Police are investigating the man who filmed himself ranting out his car window at a group of cyclists not using the bike path.

The man is heard calling the pair 'f***ing d***heads' as he drives past on the empty cycleway, while the two men ride along the narrow road.

A spokeswoman for NSW Police told Daily Mail Australia: 'Police are aware of the video and are conducting inquiries', and confirmed driving in a bike lane is against the law - as is driving while filming on a mobile phone.

The irate motorist was driving down Swamp Road, between Dunmore and Jamberoo on NSW's south coast, when he came across the two cyclists.

'What's the point of us spending this money if you're not going to use it, you f**king d***heads,' he shouted at the pair while zooming down the bike path.

'Pull over, so I can have a chat,' one of the cyclists replied.

'F*** off, f***ing idiot... use the bike track!' the driver shot back.

A man is being investigated after he drove in a bike lane to yell at cyclists driving on the road

While many rushed to defend the driver, joking he should be in the running for 'Australian of the Year', a passionate group of cyclists came forward to slam the man for his actions.

'This guy yelling out the window is an absolute sausage,' Robin Johannes said.

'That is very dangerous, not keeping your eye on the road. I have been riding bikes for 20 years and how dare you speak about us cyclists in such manner, you people don't own the f***ing road.'

Abdallah Issa said the size of a person's transport should not dictate if they have right of the road.

'I've been cycling for about 2 years now, just because your car is bigger and faster doesn't mean you own the road,' they said.

'You car drivers need a reality check. Did none of you ever learn to share? You can all wait until it's safe to overtake or shut up. This is Australia, LOVE IT OR LEAVE IT.'

The driver filmed the cyclists as he drove alongside them and told them they wre 'f***ing d***heads'

Christopher Hall said sometimes it was more dangerous to ride on a bike track than on the road.

'I obviously don't know the state of this particular track but bike tracks are often poorly maintained, which makes it extremely uncomfortable to ride with a stiff road bike and can lead to punctures.'

Though cyclists tried their best to defend their brethren, the majority of people moved to defend the driver - claiming the government authorities have spent thousands of dollars building the bike path.

'Who else thinks this guy deserves Australian of the year?' One local declared on Facebook - and dozens lined up to defend the driver.

'Totally agree with the guy in the car... there’s a great expensive bike track put in place, they are just being difficult bike riders,' added another.

'Cyclist should also be fined for using the road when a designated bike path is there,' added a third.

The Jamberoo bike path initially cost $470,000 (pictured in red) before a $63,000 extension (pictured in purple, where the incident took place) was made in 2014

The video, which was posted to Facebook page CarMafia and credited to Thomas Harris, was viewed more than 1.5million times in less than eight hours.

The Jamberoo bike path drew the ire of locals when it was first constructed in 2014, with angry farmers saying it was 'second rate' and 'shortsighted'.

The original cycleway cost $470,000 and was opened to the public in 2012, but it ended at the head of Swamp Road.

There was then an extension built, which continues along Swamp Road, which cost about $63,000.

The extension was made under a strict time restraint, as a $100,000 grant from the NSW roads authority was due to expire midway through 2014.