California Motorcycle Accident Lawyer
Motorcycle claims are different from car claims in one specific way: the rider starts out presumed reckless. The same adjuster who would never question a sedan driver's speed will open your file assuming you were splitting lanes at 90. Beating that assumption with physical evidence is most of the work, and it has to start early.
Lane splitting is legal here
California is the only state that has explicitly authorized it. Vehicle Code section 21658.1, effective in 2017, defines lane splitting as riding a two-wheeled motorcycle between rows of stopped or moving vehicles in the same lane, and authorizes the CHP to develop educational guidelines for doing it safely. There is no specified speed limit for the maneuver in the statute itself.
What that means in a claim: splitting lanes is not negligence per se, and an insurer cannot establish your fault merely by pointing out that you were doing it. They have to show that the way you did it was unreasonable under the circumstances, which is a much heavier lift and one that physical evidence often defeats.
The CHP's published guidance is worth knowing because the defense will cite it. It discourages splitting at a large speed differential relative to surrounding traffic, discourages it near large vehicles and in blind spots, and treats the practice as appropriate mainly in slow or stopped traffic. Guidance is not law, and the distinction matters when a defense expert tries to treat it as a code section.
The helmet law, and what it does to a claim
California has a universal helmet law. Vehicle Code section 27803 requires every rider and passenger, of any age, to wear a helmet that meets federal safety standards. There is no exemption by age or experience.
If you were wearing one, that fact closes off an entire line of defense argument. If you were not, the claim is not over. Comparative fault still applies, and a jury would reduce damages to the extent the lack of a helmet actually contributed to the specific injuries. That reasoning applies to a head injury; it does not logically apply to a shattered tibia. Expect the insurer to try to apply it to everything anyway.
Either way, do not throw out your gear. A cracked helmet, a shredded jacket and scraped boots are physical evidence of impact forces and of the fact that you were equipped. Photograph it and keep it in a box.
Why these injuries are different
A rider has no crumple zone, no airbag and no cage. The result is an injury profile that looks nothing like a car occupant's, and that insurers consistently undervalue at first because the treatment is long and does not follow a tidy course.
- Orthopedic trauma: open fractures, tibia and femur fractures, pelvic fractures, and the hardware and revision surgeries that follow.
- Road rash and degloving injuries, which can require debridement, skin grafts and long-term scar management, and which carry a real infection risk.
- Traumatic brain injury, including the kind that does not appear on an initial CT. Memory, word-finding, irritability and light sensitivity reported weeks later are the symptoms that matter and the ones most often left out of records.
- Shoulder and clavicle injuries from the way riders land, frequently needing surgical repair.
- Nerve injuries, including brachial plexus damage that can permanently affect arm function.
- Permanent scarring and disfigurement, which is a distinct category of non-economic damage in California and deserves to be documented photographically over time rather than described.
Long-horizon injuries need a life care perspective. If hardware will need removal, if a graft will need revision, or if an orthopedist expects arthritis in a joint within a decade, that future care is part of the claim now, and it has to be supported by a treating physician rather than asserted.
When the road is the defendant
Hazards a car shrugs off can put a bike down: a longitudinal pavement seam, loose gravel on a canyon turn, a deep pothole, a steel plate left over a trench, a raised manhole, standing water from a broken irrigation line, or a sand spill nobody cleared. If a public entity created or knew about the condition and did nothing, Government Code section 835 provides a claim for a dangerous condition of public property.
This is the most time-sensitive claim in motorcycle work for two reasons. The six-month administrative claim deadline under Government Code section 911.2 is short and strictly enforced, and the hazard itself is often repaired within days of the crash, which destroys the evidence. If you went down because of the road surface, photograph it immediately, including a reference object for scale, and get us involved that week.
Private defendants exist here too. A construction contractor that left a plate unsecured or failed to post warning signage is liable on ordinary negligence principles, with the normal two-year deadline.
Answering rider bias with evidence
The assumption that the rider was speeding is answered with measurements, not argument. On a contested motorcycle case we typically work from:
- Scene evidence. Gouge marks, the point of rest, the debris field and scrape patterns, which allow a reconstruction expert to bracket impact speed.
- The car's event data recorder, which records the other driver's speed, braking and steering input in the seconds before impact.
- Helmet and bike camera footage, which an increasing number of riders have and which ends most fault disputes immediately.
- The driver's own statements to police at the scene, where some version of 'I never saw the motorcycle' is extremely common and is itself an admission of failure to keep a proper lookout.
- Damage geometry on both vehicles, which constrains the possible angles and relative speeds.
- Phone records, where distraction is suspected and litigation makes them obtainable.
We also prepare clients for the deposition reality that they will be asked about every ticket, every track day and every modification to the bike. Answering those questions accurately and without defensiveness is far more effective than hoping they do not come up.
Reviewed October 2026. General information about California law, not legal advice. Statutes and case law change; confirm anything you intend to rely on.
Questions people actually ask
I was lane splitting when I was hit. Am I automatically at fault?
No. Lane splitting is lawful in California under Vehicle Code 21658.1. The insurer has to prove the manner in which you did it was unreasonable, and in the most common scenario the other driver changed lanes without signaling or checking a mirror, which is itself a violation. Being a lane splitter is a starting assumption to overcome, not a legal conclusion.
I was not wearing a helmet. Is my claim dead?
No, but it is complicated. California's helmet law applies to all riders, and violating it supports a comparative fault reduction to the extent the lack of a helmet actually contributed to your injuries. That logic applies to head injuries, not to a broken leg. Your recovery can be reduced; it is not eliminated.
The driver says they never saw me. Does that help or hurt?
It generally helps. Drivers are required to keep a proper lookout, and failing to see a vehicle that was plainly there is not a defense. That statement in a police report, made before anyone had a lawyer, is often the most useful sentence in the file.
Should I repair my motorcycle?
Not before it has been documented and, if liability is disputed, inspected by a reconstruction expert. The damage pattern on the bike constrains impact angle and speed, and repairing it destroys that evidence. The property damage claim can be handled in a way that preserves the inspection; tell us before you authorize work.
What if the crash was caused by gravel or a pothole rather than a driver?
You may have a dangerous condition of public property claim under Government Code 835, but the deadline is six months to file an administrative claim, not two years, and the hazard is often repaired within days. Photograph the surface immediately and contact a lawyer that week.
My injuries will need another surgery in a few years. Can that be included?
Yes. Future medical care is recoverable when it is supported by a treating physician's opinion about what you will need and what it will cost. This is one of the most frequently underclaimed parts of a motorcycle case, and it is a reason not to settle while hardware is still in place and the long-term picture is unclear.
Tell us what happened. We will tell you where you stand.
The review is free, there is no obligation, and if you do not have a claim worth pursuing we will say so. If you do, we will explain the deadlines that apply to you and what happens next.