Lukas Niebuhr
· 14.06.2026
Everyone knows that when cycling, you have to stick your arm out before turning right or left. But beginners to road cycling in particular might be surprised by the carefully choreographed arm movements of their fellow cyclists on their first group ride with experienced friends. We’ll explain the most important hand signals, when they should be used, what they mean, and why they’re so important on group rides.
The rider in front extends their arm slightly to the side and points at the ground with a straight finger: watch out, obstacle. It is precisely because of manhole covers or potholes that this is probably one of the most common hand signals on group rides. Pointing out the obstacle warns the cyclists behind and signals that you are ready to swerve.
It is also important to signal an impending stop by raising your arm with your hand outstretched. This hand signal should be given before every junction, but in other situations too, a forward-thinking road cyclist can indicate an impending stop at an early stage to prevent collisions within the group or with other road users.
The know-it-all on the bike in the drawing, who knows every answer, is actually pointing to a formation: the single file. Especially on leisurely rides with little traffic, cyclists often like to ride side by side so they can chat. If things get a bit tight, it’s best to change formation. Even when cars are overtaking from behind, small groups should switch to single file out of consideration for others. If two fingers are raised, you can ride in a double file again.
By spreading both elbows apart, the rider in front signals that they are about to stand up on the pedals. The main purpose of this signal is to warn riders close behind of sudden swerves and changes in speed. Depending on the region, spreading the elbows may also be used to signal an obstacle ahead. Therefore, pay particular attention to this signal and, if in doubt, simply ask for clarification beforehand.
Last but not least: turning. Everyone is familiar with this, as it applies to all road users. If you fail to signal when turning whilst cycling, you are committing an offence that can result in a fine of between ten and 35 euros.

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