Cycling Road Rules and Hand Signals

Riding a bike in traffic is a skill made mostly of two things: being predictable, and being where drivers are looking. Signals are the first. Lane position is the second, and it is the one that surprises people, because the instinct — hug the curb, stay out of the way — is the wrong one.

None of this is a substitute for your own state’s vehicle code, which is the authority where you ride. What follows is what two of those codes actually say, and what the national cycling education organization publishes.

The three signals, as the law defines them

We read two states’ codes directly rather than repeating the internet version. California Vehicle Code § 22111 and Minnesota Statutes § 169.19 define the same three signals in near-identical language, and both carve out the bicyclist exception for a right turn signaled with the right arm. Your state is likely to say something very similar — but it is worth a minute to check the one that applies to you.

The practical version:

• Signal early, then put your hand back. The signal is to inform, not to steer with. Braking or cornering one-handed is worse than a shorter signal.
• Look before you signal, and again after. A signal is not a right-of-way. Making eye contact with the driver behind you is worth more than the hand gesture.
• Use the stop signal in a group. Riders behind you cannot see the pothole or the red light you are reacting to.

Where to ride in the lane

The League of American Bicyclists publish concrete guidance on this, and it runs against the beginner instinct at almost every point:

• Ride in the right third of the right-most lane that goes where you are going.
• Take the middle of the lane where it is too narrow for a car to pass you safely within it, or where you are moving at the speed of traffic.
• Do not ride completely to the right. Their published wording is that you are more visible three to four feet away from the curb than hugging it.
• Ride in a straight line. Weaving into every gap between parked cars means you have to merge back into traffic each time, and drivers lose track of you.
• Do not pass on the right. Drivers turning right are not looking for a vehicle there.

The five situations that account for most incidents

1. The door. Covered above, and worth repeating because it is the one hazard where a correct lane position removes the risk entirely.
2. The right hook. A vehicle overtakes you and turns right across your path. Do not sit in a driver’s blind spot at a junction, and consider taking the lane through it.
3. The left cross. Oncoming traffic turning left across you. Being lit and centrally positioned makes you visible; assuming you have been seen does not.
4. The pull-out. A car emerging from a driveway or side street. Riding with traffic rather than against it puts you where that driver is already looking.
5. Railroad tracks and drain grates. The League’s guidance is to cross railroad tracks perpendicular — a wheel dropped into a diagonal groove goes down instantly.

Being seen is equipment, not attitude

Federal regulation 16 CFR 1512 requires reflectors on new bikes sold in the US, including a rear one. That is a floor, not a standard to aim for.

A rear light running in daytime flash mode is the single cheapest change to how early drivers notice you, and it works in the situation where reflectors do nothing — daylight, and low sun. Our lights page covers what to look for, and bright clothing does more than most riders assume.

If you are new to riding on the road at all, the mechanical side — braking, shifting, where to put your hands — is worth getting comfortable with in a quiet car park first. That is covered separately, and it is the other half of riding confidently in traffic.