motorcycle accident · personal injury
Motorcycle Accident Lawyer in California
Lane splitting is legal, partial fault isn't fatal, and the insurer's first theory is rarely the last word — here's how California motorcycle claims really work.
Mihran M. Ghazaryan··7 min read

Riders lose the crash and then lose the argument. A car pulls left across a lane, the bike goes down, and within days an adjuster is hinting that the motorcyclist was speeding, weaving, or "asking for it" — before anyone has looked at the physical evidence. Knowing how California law actually treats riders is the fastest way to stop that narrative.
Why Motorcycle Claims Are Fought Harder Than Car Claims
Two forces work against injured riders. The first is physics: with no crumple zone, a rider absorbs the collision directly, so a crash a driver would walk away from can mean surgery, a traumatic brain injury, or months out of work. The second is bias. Insurance adjusters and jurors often arrive with an assumption that motorcyclists take risks, and defense lawyers lean on it.
That means a California motorcycle accident lawyer usually has to build the liability case affirmatively rather than assume the police report settles it — scene photographs, gouge marks, vehicle damage patterns, intersection camera footage, event data from the other vehicle, and sometimes an accident reconstruction expert.
Lane Splitting Is Legal — and Still Gets Blamed
California is unusual here. Under Vehicle Code section 21658.1, lane splitting — riding a two-wheeled motorcycle between rows of stopped or moving vehicles in the same lane — is expressly recognized and is not illegal in California.
What the statute does not do is set a specific speed or a safe-passing distance. So a rider who was splitting lanes can still be assigned some fault for unsafe speed, an unsafe lane change, or riding too fast for conditions. Expect the other side to argue it, and expect it to be an argument about degree, not a knockout blow.
The same is true of the helmet law. Vehicle Code section 27803 requires every rider and passenger in California to wear a U.S. DOT-compliant helmet, at any age. If you were not wearing one, the defense will connect that to head injuries — but it does not erase a claim for a broken leg or a shattered wrist.
Partial fault does not end your case
California uses pure comparative negligence. If you are found 25% at fault, your recovery is reduced by 25% — not eliminated. Even riders assigned a majority of the blame can recover something. This is why the fault percentage, not just the question of "who was at fault," is often where a motorcycle case is won or lost.
Who Actually Pays After a California Motorcycle Crash
Several layers of coverage can be in play, and they are frequently stacked:
- The at-fault driver's liability policy. Since January 1, 2025, California's minimum limits are $30,000 per person / $60,000 per accident for injury and $15,000 for property damage. Serious motorcycle injuries blow past those numbers routinely.
- Your uninsured/underinsured motorist (UM/UIM) coverage. This is the single most important coverage a rider can carry. It applies when the driver flees, has no insurance, or carries a minimum policy that cannot cover your losses. Our guide to uninsured motorist claims in California walks through how these claims work.
- Medical payments (MedPay) coverage, which pays early treatment bills regardless of fault.
- A commercial or employer policy, if the vehicle that hit you was a delivery van, work truck, or rideshare vehicle on the clock.
- A government entity, where a dangerous road defect, missing signage, or unrepaired pavement contributed to the crash — with much shorter deadlines.
A trap that catches uninsured riders
Under Civil Code section 3333.4 (Proposition 213), a rider who was operating without the required insurance at the time of the crash generally cannot recover non-economic damages — pain and suffering — even when the other driver was entirely at fault. Medical bills and lost wages can still be recovered. There are narrow exceptions, including where the at-fault driver was convicted of DUI. If your policy had lapsed, tell your attorney immediately rather than hoping it goes unnoticed.
What a Motorcycle Injury Claim Is Worth
There is no formula and no honest lawyer will quote you a number at the first phone call. Value is driven by the categories of loss you can actually prove:
- Medical expenses, past and projected future care — surgeries, hardware removal, rehabilitation, and long-term treatment for brain or spinal injuries.
- Lost income and lost earning capacity, which for a rider who cannot return to physical work can dwarf the medical bills.
- Pain, suffering, disfigurement, and loss of enjoyment of life. California places no statutory cap on these damages in ordinary injury cases.
- Property damage to the bike and gear.
- Punitive damages, available only in narrow circumstances such as a drunk driver whose conduct shows malice or conscious disregard for safety.
The practical ceiling is often the available insurance, which is why identifying every applicable policy early matters more than aggressive early demands. Cases involving catastrophic injuries usually require life-care planning and economist testimony to document future losses properly.
Deadlines That Can Quietly End Your Claim
- Two years from the date of the crash to file a personal injury lawsuit in California (Code of Civil Procedure section 335.1). Wrongful death claims generally carry the same two-year deadline from the date of death.
- Six months to file an administrative claim if a government entity is responsible — a city, county, transit agency, or Caltrans. Miss it and the claim is usually gone.
- 10 days to file an SR-1 report with the California DMV when a crash caused injury or death, or property damage above the state threshold. This is a licensing requirement, separate from your injury claim.
- Shorter contractual deadlines may apply to UM/UIM claims under your own policy — read the notice provisions.
Deadlines can be shortened or extended by facts specific to your case, including claims involving minors. Confirm yours with a lawyer rather than assuming you have two years.
Steps That Protect a Claim in the First 30 Days
- Get evaluated even if you feel functional — adrenaline masks fractures, internal bleeding, and concussion symptoms.
- Photograph the scene, the vehicles, the roadway, and your gear before the bike is repaired or scrapped. Do not let the salvage yard destroy the motorcycle; it is evidence.
- Report the crash to your own insurer, but decline to give the other driver's insurer a recorded statement until you have legal advice.
- Keep your helmet and damaged riding gear exactly as they are.
- Write down treatment, missed work, and daily limitations as they happen. Contemporaneous notes are far more persuasive than a reconstruction a year later.
- Stay off social media about the crash and your recovery.
Frequently Asked Questions
How is fault determined in a California motorcycle accident?
Through evidence, not the police report alone. Officers form opinions quickly and often without reconstruction. Fault is ultimately allocated by percentage, based on physical evidence, witness accounts, traffic law violations, and expert analysis — and an initial citation can be overcome.
Can a passenger sue after a motorcycle accident in California?
Yes. A passenger is almost never at fault and may have claims against the other driver, the rider they were with, or both — including under either operator's insurance policy.
Does not wearing a helmet stop me from recovering?
No, but it complicates things. Because California requires helmets for all riders, the defense will use the violation to argue comparative fault for head and facial injuries. Other injuries remain fully compensable.
What if the driver who hit me fled the scene?
Your own uninsured motorist coverage typically steps in. Report the crash to police promptly and to your insurer within the timeframe your policy requires — hit-and-run UM claims often have strict early-notice conditions.
How much does a motorcycle accident lawyer cost?
Injury cases are handled on contingency: no upfront cost, and the firm is paid a percentage of the recovery only if the case resolves in your favor.
Talk to a California Motorcycle Accident Attorney
If you were hurt on a bike anywhere in California, MMG Law Firm offers a free, no-obligation consultation to review what happened, identify every source of coverage, and explain your options. Injury cases are handled on a contingency fee basis — no fee unless we win. Learn more about our motorcycle accident practice, or contact us to speak with someone today.
This article is general information about California law, not legal advice for your specific situation. Deadlines and outcomes vary; consult an attorney about your own case.