It’s perfectly legal for cyclists to ride two abreast on the road, so when you are off on a spin with your friends, feel free to cycle side by side. However, the highway code states that you can’t ride more than two abreast, and you can’t do it when on narrow roads or when cycling around bends.

It’s also courteous ride single file to allow cars to pass you if it’s safe for them to do so, and you can regroup after the car has gone past.

Highway Code, Rules for Cyclists: 66 You should never ride more than two abreast, and ride in single file on narrow or busy roads and when riding round bends.