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Your Guide to Bicycle Rules and Regulations

When biking in Denmark, there are certain rules you need to follow. There are the unwritten rules, such as; don’t yell at your fellow cyclists,  and then there are a lot of written rules, which you might be familiar with already. If you are not informed about the rules and regulations already, you will be after reading this article!

Bike lights

All bikes are required by law to have on lights from sunset to sunrise, and in shady weather like fog or heavy snow fall. If you are unsure about the sunrise/sunset times, then you can always look it up at DMI. A rule of thumb is that when the street lamps are on, then you need lights on your bike!

The lights on your bike are required to have a bright, straight white light pointing forwards and a red light pointing backwards. Furthermore, the lights have to be visible from the sides and they also have to be visible at a 300 m distance. Lights hanging loose in a rubber band are not legal; the lights have to be strapped onto the bike. If you choose a blinking light, the frequency has to be minimum 120 blinks per minute.


Your bike must be possible to see from all angles, when it is dark. This means that you should have a white reflector, which is visible from the front, a yellow refloctor on each of the pedals and a red reflector that is visible from behind. You also need to have reflectors on the wheels of the bike.


A bell needs to be placed on the handlebars of your bike. It has to be loud and clear, and you cannot replace it with a horn or something else that makes a noise.


You have to have brakes on both wheels and they have to work.

Bike helmet

More and more in Denmark are wearing a helmet when biking, and simultaneously the statistic on brain injuries after bike accidents is falling. Wearing a helmet is not required by law, but it is highly recommended. You can buy a helmet in a bike shop, in some book stores and in large supermarkets like Kvickly and Føtex.

Make sure to choose a helmet that feels good on your head, a helmet design that you like and most importantly make sure that the helmet is marked with CE as this is a guarantee that the product abides to EU-regulations. If the CE mark is followed by EN 1078, you can be sure that the helmet meets the European standard for helmets.

You can also wear a ski helmet or a skater helmet, since these are approved by the same standards as a regular biking helmet.

Be aware: that your helmet can be cracked, and therefore not work properly, even though you cannot see it. If your helmet has gotten a hard blow, and you are unsure whether or not it is still ok, then we advise you to purchase a new one – better safe than sorry.

Riding your bike drunk

The law states no particular alcohol limit for cyclists; however, should the police deem you to be driving recklessly while you are under the influence of alcohol, then they can give you a fine for 1500 DKK. You can also lose your driver’s license if you are riding you bike drunk. So it is advisable to leave your bike and walk home or take taxi/public transportation, if you have been drinking.

Signaling with your hands

Stop: Raise one hand straight up in the air.
Left: Point with your left arm to the left side.
Right: Point with your right arm to the right side.

A list of rules and fines

Here is a list, so you can get updated on the rules and regulations: 

Fine: 700 DKK
  • No lights between sunset and sunrise.
  • If you do not respect a road sign or an arrow.
  • If you are driving on the sidewalk.
  • If you are being pulled after another vehicle.
  • If you do not use a bike lane, when there is one.
  • If you use the bike lane in the left (wrong) side of the road.
  • If you do not stay as far to the right as possible.
  • If you do not drive right around a refuge island etc.
  • Missing or excessive signaling with your hands.
  • Brakes not working
  • Driving without hands on the handlebar
  • Two persons on one bike that only has one seat.
Fine: 1000 DKK
  • Ignore a red light.
  • Driving against the traffic.
  • Don’t stop for traffic, when you have duty to give way.
  • Using a handheld mobile phone
Fine: 1500 DKK + maybe losing your driver’s license
  • Driving recklessly while being drunk.

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