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Oct 19, 2026
Riding a bike through Tucson traffic or a marked lane in Scottsdale means sharing the road with cars and trucks, and that mix sometimes ends in a crash.
Yes, a cyclist can be at fault for an accident, sometimes fully and sometimes only in part. Arizona law treats a rider much like a driver, so a rider can share blame for running a light or swerving without warning.
A shared-fault crash still is not a dead end. The team at Bleaman Law Firm P.C. sorts out who actually caused a wreck, and a consultation costs nothing.
Key Takeaways
- Arizona law gives cyclists the same rights and duties as drivers on the road.
- Running a light, riding without lights at night, or swerving without signaling can shift blame onto a rider.
- Arizona’s pure comparative negligence rule still lets a partly at-fault cyclist recover a reduced award.
- Insurance adjusters often try to inflate a cyclist’s share of fault to pay out less.
If an adjuster has already called the crash your fault, it is worth a second look before you accept that number.
How Arizona Law Treats Cyclists Like Drivers On The Road
A rider on a roadway or shoulder picks up the same rights and duties as a driver under ARS 28-812. A cyclist owes other road users a duty of care, not a free pass. Someone who blows through a stop sign near downtown Tucson can be cited and found partly responsible, the same as a driver would be.
Common Ways A Cyclist Can Share Fault For A Crash
Insurance companies look for specific mistakes when they try to shift blame onto an injured rider. Common ones include:
- Running a stop sign or red light
- Riding against the flow of traffic
- Riding at night without a front light or rear reflector, required under ARS 28-817
- Swerving out of a bike lane without signaling
Any one of these can shift part of the blame onto a rider, but it rarely wipes out a claim entirely.
How Arizona’s Pure Comparative Negligence Rule Affects Your Recovery
Arizona does not use an all-or-nothing rule for shared fault. Under the pure comparative negligence standard in ARS 12-2505, fault gets split by percentage, and a rider’s payout shrinks by that share instead of disappearing. A cyclist found 25% at fault for $80,000 in damages would still recover $60,000.
A bicycle accident attorney can push back on an inflated fault percentage before it shrinks a settlement more than it should.
What Insurance Adjusters Don’t Tell Injured Cyclists
Adjusters rarely explain how they calculate a cyclist’s share of fault, and that gap works in their favor. Attorney Marc Bleaman spent part of his career defending insurers before turning his practice toward injured riders, and that background shapes how he checks an adjuster’s numbers against the real evidence.
Plenty of crashes come down to driver error instead. Arizona requires motorists to leave three feet of space when passing a bike under ARS 28-735. A driver who passes too close on a busy Scottsdale corridor and clips a rider has broken that law.
Other driver mistakes come up again and again in bike crash claims:
- Turning right across a bike lane without checking for riders
- Opening a car door into a rider’s path, which ARS 28-905 prohibits unless it is safe
- Pulling out of a driveway or side street without yielding
- Looking at a phone instead of the road
When a driver made one of these mistakes, the evidence can shift most of the fault back onto the motorist.
Frequently Asked Questions
What if the police report blames me for the crash?
A police report is one piece of evidence, not the final word on fault. Officers often write reports after a few minutes at the scene, and video or witness statements can tell a different story. Talk to an attorney before accepting an officer’s account as the end of the matter.
Will a bicycle traffic ticket raise my insurance rates?
No. Arizona law blocks insurers from using a bicycle civil traffic violation to raise rates, cancel a policy, or report it to the motor vehicle division. It can still come up in a fault discussion between the parties, but it works differently than a car ticket.
Can I still recover if I wasn’t wearing a helmet?
Yes. Arizona has no statewide helmet law for adult riders, so riding without one is not a traffic violation for an adult. An insurer may still argue that a helmet would have made a head injury less severe. Under the pure comparative fault rule, that argument can reduce an award by a percentage, but it does not erase the claim.
Do the same fault rules apply if I was riding an e-bike?
Generally, yes. Arizona treats e-bike riders much like traditional cyclists, with the same rules of the road and the same duties. The same comparative fault rule applies to an e-bike crash, so a partly at-fault rider can still recover a reduced award.
How long do I have to file a bicycle accident claim in Arizona?
Most riders have a two-year statute of limitations from the date of the crash to file suit under ARS 12-542. Waiting too long can cost you the right to recover anything, even with a strong case. Start gathering medical records and crash evidence as soon as you can.
Bleaman Law Firm P.C.: Your Arizona Personal Injury Law Firm
Figuring out who caused a bike crash, and how much blame might land on you, should not rest on an adjuster’s quick read of the scene.
Marc Bleaman serves as President of the Southern Arizona Chapter of the American Board of Trial Advocates, an invitation-only group of trial lawyers. That courtroom experience matters when an insurer refuses to move off an unfair fault number. A short conversation about your crash costs nothing. Contact our firm today.
Arizona Bicycle Accident Resources:
