A Sydney cyclist has been slapped with a whopping $915 fine for three offences - but he didn't get much sympathy from drivers.

The man gave other riders a 'friendly reminder' of the NSW road rules that he overlooked this week, adding that the 'joke was on him'.

The cyclist was busted running a red light, failing to wear a helmet and riding on a footpath, costing him $457, $344 and $114 respectively.

A Sydney cyclist has been slapped with a whopping $915 fine for three offences - but he didn't get much sympathy from drivers (stock)

The man shared photos of all three infringement notices he received.

Road rules for cyclists in NSW - A bicycle is considered a vehicle and has the same road rules as other vehicles. - Helmets must be worn by cyclists of all ages in NSW. - Children under 16 years of age are allowed to ride on a footpath, up from children under 12 years of age. -An adult rider who is supervising a cyclist under 16 may also ride with the young rider on the footpath, but in no other circumstances. Advertisement

'Friendly warning to Sydney bike riders and unfamiliar tourists,' he captioned the photos.

'Riding without a helmet, riding on a footpath, not stopping before a red light, or doing all three at once could land you $915.00 in one go. '

Many social media users were quick to sympathise with cyclist, but others were less understanding.

'Riding on the footpath is selfish and arrogant,' one wrote, while another simply added: 'Good'.

The fine for riding without a helmet is almost five times greater than it was previously, having jumped from $344 from $73.

The fine is huge compared to other states. In the Northern Territory riders will be fined just $25.

The cyclist was busted running a red light, failing to wear a helmet and riding on a footpath, costing him $457, $344 and $114 respectively