Bike Crash Checklist: What to Do at the Scene and After

After a bike crash, do these things in order: get out of harm’s way if you can move safely, call 911 if anyone may be hurt, document the scene and get the police case number, see a medical professional even if you feel fine, replace your helmet, and have the bike inspected before you ride it again. This checklist walks through each step, with the reasons behind it and the California rules that apply to riders in our home region.

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Key Takeaways

Check yourself and your surroundings before you check the bike. Adrenaline can hide pain, so feeling fine at the scene does not mean you are uninjured.
Call 911, stay until police allow you to leave, and write down the case number plus the officer’s name and agency.
Photograph the scene, vehicles, debris and any cameras nearby, then keep photographing injuries as they change.
Retire any helmet that took an impact, and do not ride a bike with a damaged fork, bars, wheel or crank until a shop has checked it.
In California, a crash involving injury or more than $1,000 in property damage triggers a DMV report deadline of 10 days, and injury claims have their own time limits.

First Minute: Safety and Injury Check
When to Call 911 and Get Medical Care
Police, Information and Evidence
Watching for Delayed Symptoms
Helmet and Bike Checklist
California Rules Riders Should Know
Printable Checklist
Our Perspective
Keep Riding With SoCalCycling.com
FAQ
Sources

First Minute: Safety and Injury Check

Do not jump up and grab the bike. BikeHouston says to assess your physical condition and your location right away, noting that head or spinal injuries can get worse if you move. If you can do it safely, get away from the roadway so you are not hit a second time.

Here is the order we use:

Stop and breathe. Take stock of what hurts before you move.
Look for hazards. Moving traffic is the big one. Vertex Legal also lists fire, leaking fuel and damaged electrical equipment, and advises moving only if that does not worsen an injury.
Stay still if you suspect a serious injury. The Massachusetts Bicycle Coalition advises lying still until you or a qualified person can confirm you are not seriously hurt. If you are lying in harm’s way, try to get to a safe place and note where you and your bike ended up.
Ask someone to call 911. Neck or back pain, dizziness or confusion all call for staying as still as you can and getting a bystander to make the call.

If you are riding with a group, this is where a ride partner earns their place. Assign jobs out loud: one person on traffic, one on the phone, one with you.

When to Call 911 and Get Medical Care

When in doubt, call. Vertex Legal says to call 911 when anyone is seriously hurt, a driver may be impaired, a vehicle has left the scene, traffic is blocked, or the crash creates an immediate safety risk.

Be ready to give the nearest street address and intersection, and recruit bystanders to help. Call a personal contact too, so someone knows where you are.

Go to the ER or urgent care for these

Any suspected concussion, especially with confusion, dizziness or nausea
A deep wound that keeps bleeding after 15 minutes of pressure
A suspected broken bone or dislocated joint
Loss of consciousness, repeated vomiting, a worsening headache, slurred speech, weakness, numbness, trouble walking or vision problems

The first three come from Bike Legal Firm’s guidance on ER and urgent care visits, and the last list comes from Lance Andrew Law, which also notes that concussion signs can show up hours or days after the impact.

Do not wave off the paramedics

The Massachusetts Bicycle Coalition says not to refuse medical care unless you are positive you are not injured, and never after a blow to the head or face or if your back or neck was bent or twisted. If no EMT responds, BikeHouston reminds you that adrenaline can mask pain, so go to the ER if you are in doubt.

The Iowa Department of Transportation puts the principle plainly: always seek medical help because injuries may not be felt immediately.

If the rider is a child

The American Academy of Pediatrics says that if a child with a head injury is not awake, call 911, hold the head and neck very still and do not move the child until help arrives. If the child is awake but has a headache, blurry vision, ringing in the ears, nausea or dizziness, see a doctor right away.

For more on head injuries specifically, see our guide on what to do if you sustain a head injury while cycling.

Police, Information and Evidence

Stay at the scene. BikeHouston advises giving the police the facts, asking for the case number and the officer’s name and agency, and not leaving until the police leave or tell you that you may go.

Write these down or text them to yourself:

Police case number, officer name and agency
Driver’s name, phone, license plate and insurance details
Names and phone numbers of witnesses
The exact location and time

What to photograph

BikeHouston recommends photographing the positions of cars and bikes, skid marks, debris, crosswalks and pedestrian signals, and scanning for video cameras that may have recorded the crash. Storefronts, traffic signals and buses are common places to look. Camera footage is often overwritten, so note the address of any camera and ask the business about it soon.

Our own coverage explains why this matters. In Evidence Wins Bicycle Injury Cases and Reconstructing a Bicycle Crash, the thread is the same: what you capture in the first hour shapes how the crash is understood later.

Keep documenting after you leave

Take photos of your injuries as they change over time, as Bike Legal Firm advises, and keep your gear. Bruising often darkens on day two or three. Save your torn kit, your helmet and your damaged components rather than throwing them away. It also helps to understand why the consequences of an accident are often underestimated, because early notes taken while details are fresh make later decisions easier.

Watching for Delayed Symptoms

You can stand up, talk and even ride home and still be hurt. Vertex Legal explains that adrenaline can make pain less noticeable, and that neck or back pain, dizziness, bruising, abdominal pain and limited movement may develop hours or days later. A helmet can reduce the risk of some head injuries but cannot rule out a concussion.

Get checked by a doctor so your injuries are documented, a point Bike Legal Firm makes for insurance claims, and monitor for dizziness, headaches or soreness over the following days. Do not ride again while dizzy, impaired by pain medication or unable to control the bike safely. Our articles on head injury and concussion in cycling and field diagnostic tools for mild traumatic brain injury cover the signs in more depth.

Helmet and Bike Checklist

Once you are safe and cared for, the bike needs the same honest assessment you gave yourself.

Helmet

Replace it. The CPSC says a helmet should be replaced after any impact, including a drop, because helmets are one-time-use products and you may not see the damage. Cracks in the shell, worn straps and missing pads are also reasons to replace one. If your head hit the ground, treat the helmet as finished even when the shell looks clean.

Bike inspection, step by step

These tests come from the Massachusetts Bicycle Coalition’s post-crash guidance:

Check	How	If it fails
Fork, handlebars, headset	Look for damage, then turn the bars	Do not ride
Wheels	Spin each one and apply the brake	Significantly out of true or rough braking: do not ride
Cranks	Grab each crank and pull it away from and toward the bike	Any play: do not ride

Beyond those, we add a routine of our own for a full look:

Frame: inspect tubes and joints for cracks, dents or paint that has wrinkled or cracked.
Bars and stem: check that they are aligned with the front wheel and do not slip under load.
Drivetrain: look for a bent derailleur hanger, a kinked chain or shifting that has changed.
Carbon parts: have a shop assess them even when they look fine, since damage can hide beneath the surface.

A bike shop can do a full crash inspection. If you ride carbon or a bike you rely on for racing, we think that is time well spent before you line up at your next event.

California Rules Riders Should Know

These are specific to California, not universal across the US.

DMV report (SR-1). California law requires a traffic accident to be reported to the DMV within 10 days if there was an injury, a death or property damage over $1,000. The DMV’s SR-1 form says a late report can lead to license suspension, and that the report is separate from any police or insurance report. The CHP cites Vehicle Code Section 16000 for this requirement, which applies to drivers of vehicles involved in these crashes. If you were involved in a collision with a motor vehicle, ask a qualified attorney or the DMV how it applies to your situation.

Claim deadlines. Bicycle Law notes that California personal injury claims from bike accidents typically must be filed within two years, and claims involving government entities often require an administrative claim within six months. A road defect or a crash involving a city vehicle can fall into that shorter window, so speak to a California attorney early.

For background on protecting your rights, read our pieces on how to protect your rights after an accident and legal tips for handling injury cases.

Printable Checklist

At the scene

Stop, breathe, check yourself
Get out of traffic if you can move safely
Call 911 and give the nearest address and intersection
Stay put until police allow you to leave
Get the case number, officer name and agency
Photograph vehicles, debris, signals and cameras
Collect driver and witness details

Within 72 hours

See a doctor or go to urgent care or the ER
Photograph injuries daily
Report to your insurer
Keep your helmet, kit and bike as they are

Before you ride again

Replace the helmet
Have a shop inspect the frame, fork, wheels and cranks
Make sure you are clear of dizziness and pain medication

Our Perspective

We cover cycling in Southern California every week, from criteriums to gran fondos, and the pattern we see is that riders are prepared for the ride but not for the crash. Most of us carry a spare tube. Far fewer carry ID and an emergency contact, or know the sequence of what to do when the ride ends on the pavement.

Our view is that a checklist works because it replaces decisions with habits at the moment your head is least clear. That is why we publish rider-focused guidance on head injuries, evidence and the law alongside our event calendars and race coverage: the same community that shows up for the start line should know how to look after each other when something goes wrong.

Put your phone case to work: save the list above as a note, add an emergency contact to your lock screen, and tell your group the plan before the ride rolls out.

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Keep Riding With SoCalCycling.com

Once you are healed and the bike is cleared, getting back into the rhythm is part of recovery. We list road races, gran fondos, fun rides and cyclocross events across Southern California, with race reports and results from the events we cover.

Browse the latest calendars, news and rider stories on SoCalCycling.com, and pick your first event back.

FAQ

Should I call the police after a bike crash with no injuries?

If a vehicle was involved, yes. Call 911, and ask for the case number and officer’s details before you leave. A police report gives you an official record, and injuries often only show up later.

How long after a crash can symptoms appear?

Hours or days. Vertex Legal notes that neck or back pain, dizziness and abdominal pain can develop later. If you hit your head or have confusion, vomiting or a worsening headache, seek urgent care.

Do I need a new helmet if it looks fine?

Yes. The CPSC says a helmet should be replaced after any impact, and you may not see the damage. Helmets are designed for a single impact.

Do I have to report a bike crash to the California DMV?

California requires an SR-1 report within 10 days when a crash involves injury, death or property damage over $1,000, per the DMV’s form. The requirement is framed around drivers of vehicles in the crash, so confirm how it applies to you with the DMV or an attorney.

When is it safe to ride again?

When you are cleared of symptoms such as dizziness, are not on impairing pain medication, and the bike has passed a wheel, crank, fork and bar inspection. If anything fails, do not ride until a shop has fixed it.