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^{21 January 2026}

The road rules every cyclist should know

Ever wondered what the rules really are for cyclists on South Australian roads?

On Tuesday 20 January, Legal Services joined ABC Radio Adelaide’s Drive with Nikolai Beilharz to clarify the rules that apply to cyclists on South Australian roads. 

Senior Lawyer and Team Leader Chris Stone provided practical answers to listeners’ questions, on everything from red light offences to using mobile phones while riding. To hear the full conversation, tune in to ABC Drive and listen from 00:19:53.

Below we summarise the conversation highlights, including frequently asked questions and general audience queries answered live on the program.

For more detailed information about road rules and cycling in South Australia, visit:
•    SA Gov website – Cyclist road rules and safety
•    Law Handbook – Road rules for cyclists
•    Drink driving and the law factsheet
•    Drug driving and the law factsheet 

Are cyclists treated the same as motorists when it comes to road rules?

Yes. Cyclists must generally obey the same basic road rules as drivers. Running a red light, for example, can lead to a significant on the spot fine and demerit points applied to your driver’s licence. 

Can cyclists receive demerit points? 

Yes. If you commit an offence that attracts demerit points while riding a bicycle and pay the expiation fee, demerit points will be recorded against your driver’s licence. If you do not hold a driver’s licence, demerit points cannot be recorded. 

Do cyclists have to register their bicycles like motorists register cars? 

No. Although the idea is regularly discussed in the community, no Australian jurisdiction currently requires bicycle registration. 

Is it an offence to ride a bicycle while drunk or on drugs? 

Yes. Riding a bicycle while under the influence of alcohol or drugs is an offence. Road rules relating to driving under the influence apply to all vehicles, including bicycles, scooters, and even animals such as horses capable of being ridden on a road. 

Is it illegal for cyclists to use mobile phones? 

Yes. Using a mobile phone while riding a bicycle is an offence, just as it is for motorists. 

Must cyclists use a marked bicycle lane? 

Yes. If a dedicated on-road bike lane exists, cyclists must use it unless it is unsafe or impractical to do so. 

What about off-road shared paths that run parallel to a road? 

Cyclists may choose to ride on the road or use the path. There is no requirement to use an adjacent shared path. 

Can cyclists ride on footpaths? 

Yes. Riding on footpaths is legal in South Australia, provided cyclists give way to pedestrians, ride safely and considerately, and re-enter the road safely. 

Do bicycles need lights and reflectors? 

Yes. When riding at night or in hazardous weather, bicycles must have a white front light (steady or flashing), a red rear light (steady or flashing), and a rear reflector. 

Are there helmet exemptions for religious reasons? 

Yes. While cyclists are generally required to wear a helmet while riding, observant Sikh riders who wear turbans are exempt. 

Have more questions? Call our Legal Helpline on 1300 366 424 for free information and advice, from 9am to 4:30pm (Monday to Friday).