what does this symbol mean?
A cyclist seen from behind, with the left arm out to the side and bent down at the elbow

Bike stop or slow signal

A cyclist’s left arm held out with the forearm pointing down means they are stopping or slowing down.

How to read it

New York’s §1237 defines a bicyclist’s “stop or decrease speed” signal as “left hand and arm extended downward”, and the Texas Driver Handbook describes bicyclists “using their left arm pointed downward to signal a stop”. NHTSA’s hand signals handout describes the left or right arm out sideways, bent at a 90-degree angle at the elbow, hand pointing downwards and palm facing backwards. It is the same signal as a driver’s Stop or slow down hand signal.

Also searched as: bicycle stop signal, bike slow down signal, cycling stop hand signal.

Rules vary by state and country. This explains what each signal means in the state vehicle codes, driver handbooks and the UK Highway Code it cites; it isn’t legal advice.

Left arm or either arm

New York’s law and the Texas handbook name the left arm. NHTSA’s handout for young cyclists accepts either arm.

In the UK and Ireland

The slowing-down signal there is a straight arm moved up and down. The Highway Code shows a cyclist giving it with the right arm, and Ireland’s Road Traffic Regulations describe the right arm extended fully, palm turned downwards, moved slowly upwards and downwards. Hong Kong’s Road Users’ Code asks cyclists for the arm level with the shoulder, palm facing downwards, moved up and down at least three times. See UK arm signals (Highway Code).

More driving and cycling hand signals

The same shape elsewhere

Sources

Researched, edited and approved by Rory Hansen before publishing. Last reviewed October 9, 2026. How we research

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