California Motorcycle Accident 101

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motorcycle accident and injuries

A rider’s plain-language guide to what happens after a California motorcycle crash—the laws that decide fault, the steps that protect your claim, and how to get compensation moving.

What to do in the first 24 hours

Motorcycle claims are won or lost on details gathered early. Insurance adjusters move fast, and evidence at a crash scene disappears just as fast. If you’re able to, work through these steps in order.

1-Get to safety and call 911

Move out of traffic only if you can do so without worsening an injury. Request police and paramedics even if injuries seem minor—a police report is often the backbone of a motorcycle claim, and some injuries (concussions, internal bleeding, road-rash infections) don’t show symptoms right away.

2-Let paramedics evaluate you

Riders frequently decline treatment at the scene out of adrenaline or shock. Get checked anyway. A same-day medical record ties your injuries directly to the crash, which matters enormously once an insurer starts arguing about causation.

3-Document everything you can

Photograph your motorcycle, the other vehicle, license plates, skid marks, road conditions, traffic signals, and your gear and injuries. Get names and phone numbers for witnesses — they often leave before police finish taking statements.

4-Watch what you say

Exchange insurance and contact information, but avoid discussing fault at the scene, on the phone with the other driver’s insurer, or in writing. Statements like “I’m fine” or “I didn’t see the light” get used later to shift blame.

5-Preserve your gear and the bike

Don’t repair or discard your helmet, jacket, or motorcycle until it’s been photographed and, ideally, inspected. Damaged gear is physical evidence of impact speed and point of contact.

6-Talk to a motorcycle injury attorney before you talk to the insurer

Insurance companies routinely lean on rider stereotypes to shrink or deny payouts. A quick call before you give a recorded statement can prevent an early misstep from capping your claim.

California Relevant Motorcycle Laws

Motorcycle cases turn on a handful of California-specific rules. Here’s what typically comes up.

Lane splitting

California is the only state that formally authorizes lane splitting — riding between lanes of slow or stopped traffic. It’s legal when done reasonably and safely, but insurers still try to paint a lane-splitting rider as automatically at fault. Legality and fault are two separate questions, and CHP guidance on safe speed differentials often becomes evidence in these disputes.

Helmet law
California requires every rider and passenger to wear a DOT-approved helmet, full stop. If you were riding without one, it generally won’t bar your claim entirely, but it can be used to argue your head or facial injuries were more severe than they should have been — reducing that specific portion of your damages.
Comparative negligence – Pure comparative fault
California lets you recover damages even if you were partly at fault for the crash — your award is simply reduced by your percentage of fault. There’s no cutoff that bars recovery, unlike states with modified comparative negligence rules. See the example below.
Statute of limitations
You generally have two years from the date of the crash to file a personal injury lawsuit in California. Claims against a government entity (a city, county, or Caltrans, for example) require a formal claim within six months — far shorter, and easy to miss without a lawyer involved early.
Minimum insurance
California’s mandatory minimum liability coverage is often nowhere near enough to cover a serious motorcycle injury. Underinsured/uninsured motorist coverage on your own policy frequently becomes the real source of recovery — worth checking immediately after a crash.

How pure comparative fault plays out

$200,000 in damages  −  25% fault assigned to you  =  $150,000 recoverable

Say a driver turns left across your path but you were also riding a few miles over the limit. An insurer might argue you’re 25% responsible. Under California’s rule, you’d still recover 75% of your total damages — not zero. Insurers routinely open with an inflated fault percentage against riders; pushing back on that number is often where real settlement value is won.

Common causes of motorcycle accidents in California

Understanding how your crash happened shapes who can be held liable — sometimes more than one party.

Left-turn collisions

A driver turning left misjudges a motorcycle’s speed or simply doesn’t see it — one of the most common causes of serious rider injuries at intersections statewide.

Unsafe lane changes

Drivers checking mirrors but not blind spots merge into a rider’s lane, especially on crowded freeways like the 405, 101, and 5.

Following too closely / rear-end impacts

Motorcycles stop faster than cars. A tailgating driver who can’t react in time causes some of the most severe impact injuries riders see.

Road hazards

Potholes, uneven pavement, gravel, and poor construction signage are far more dangerous on two wheels than four. When a public entity’s negligent road maintenance is the cause, a claim may run against a city or county—on that six-month clock.

Distracted or impaired driving

Phone use and driving under the influence remain leading contributors to crashes involving motorcyclists and often support a claim for punitive damages in addition to compensatory ones.

Dooring and parked-vehicle hazards

A driver or passenger opening a car door into a bike lane or traffic lane can cause a rider to lay the bike down, avoiding it—liability generally falls on whoever opened the door without checking.

Motorcycle Accident Types of Injuries

Riders absorb crash forces directly, which is why motorcycle injuries tend to be more severe than car-accident injuries at comparable speeds—and why claims tend to be worth more.

Traumatic brain and spinal cord injuries

Even with a helmet, high-speed impacts can cause concussions, brain bleeds, and spinal damage with lifelong care needs.

Road rash and degloving injuries

Sliding across pavement can strip away skin and tissue, often requiring skin grafts and leaving permanent scarring.

Fractures and orthopedic trauma

Leg, hip, and collarbone fractures are common in side-impact and low-side crashes, sometimes requiring multiple surgeries.

Amputation and disfigurement

Severe crush injuries can lead to partial or full limb loss, which factors heavily into long-term damages calculations.

What compensation can cover

Past and future medical care, lost income and reduced earning capacity, property damage to your motorcycle and gear, pain and suffering, and—in a fatal crash—wrongful death damages for surviving family.

How Tien Law Firm handles motorcycle cases

We built our practice around the fact that motorcycle claims get treated differently—and unfairly—by insurance companies. Here’s what that means for you.

  • No fee unless we win: We work on contingency. There’s no upfront cost, no hourly bill, and no fee at all unless we recover compensation for you.
  • We push back on rider bias: Adjusters often assume a rider was speeding or lane splitting recklessly before they’ve seen a single fact. We counter that narrative early with scene evidence, crash reconstruction, and CHP reports.
  • We handle the medical side too: We help connect clients to treatment when insurance stalls, and we build the full medical record needed to value long-term injuries accurately—not just the first ER bill.
  • Statewide reach, local knowledge: With offices in Irvine and San Francisco, we handle claims across California and know how local courts, police departments, and insurers in each region tend to operate.

Motorcycle Accident FAQ

How much does it cost to hire a motorcycle accident lawyer?

Nothing upfront. We take motorcycle injury cases on contingency, meaning our fee comes out of the settlement or verdict we recover—if we don’t win, you don’t owe us a fee.

What if I was lane splitting when the crash happened?

Lane splitting is legal in California when done reasonably. It doesn’t automatically make you at fault, though insurers often argue otherwise. We evaluate your speed differential, traffic conditions, and the other driver’s conduct to counter that argument.

What if I wasn’t wearing a helmet?

You can still pursue a claim. Not wearing a helmet may reduce compensation tied specifically to head or facial injuries, but it doesn’t eliminate your right to recover for the crash itself.

How long do I have to file a claim?

Generally two years from the date of the crash for a personal injury claim, but only six months to file a claim against a government entity if a public road defect or a government vehicle was involved. Some circumstances shorten or extend these deadlines, so it’s worth confirming your specific timeline early.

The insurance company already made an offer. Should I take it?

Early offers are frequently far below what a claim is actually worth, especially before the full extent of injuries is known. We recommend having an attorney review any offer before you sign a release—once accepted, you typically can’t go back for more later.

What is my motorcycle accident case worth?

It depends on medical costs, lost income, the severity and permanence of the injury, and the degree of fault on each side. A free case review with our team gives you a realistic picture based on the specifics of your crash.

Free, no-obligation case review

Talk to a California motorcycle accident attorney today

Every day you wait is a day evidence and witness memories fade—and a day closer to a filing deadline. Tell us what happened and we’ll tell you exactly where you stand.

 

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