Sunset, the canyon roads that climb out of Brentwood, and the 405 itself are all regular motorcycle routes, and they are unforgiving when a car turns left or changes lanes without seeing a bike. The injury is often serious. The civil file still starts with the same questions as a car wreck, with a few facts that motorcycle cases tend to raise earlier, including visibility, lane position and the size of the available insurance.
Fault is still a comparison
Official instruction CACI 405 reduces a recovery by the injured rider’s percentage of responsibility, with no half-fault cutoff in that instruction. A driver who turned left across a motorcycle on Sunset, or who changed lanes into a bike in the 405 carpool lane, will often be the larger share. Speed, lane splitting in heavy traffic, or a rider who was hard to see in dark clothing at dusk can also be part of the comparison if the facts support it. Noneconomic damages against each defendant are several only, in proportion to that defendant’s share, under CIV 1431.2.
Handheld phone use under VEH 23123.5 and a failure to yield in a crossing under VEH 21950 can belong in the same letter when the facts fit. The three-foot rule in VEH 21760 is written around bicycles, not motorcycles, so it should not be stretched into a motorcycle case unless a later official text says otherwise. The ordinary duty of due care is enough to work with.
Insurance often feels too small
A policy first written or renewed from January 1, 2025 onward, has a thirty / sixty / fifteen liability floor under VEH 16056. Motorcycle injuries frequently exceed those numbers. Underinsured coverage on the rider’s own motorcycle policy, or on another household policy if it actually applies, can then become the center of the file, subject to INS 11580.2, including the credit for amounts already paid and the rule against stacking limits. If the other driver was uninsured or unknown, the physical-contact and 24-hour report hooks in that section matter. The uninsured and Proposition 213 guide explains both the coverage and the non-economic limits in CIV 3333.4.
Read the declarations page rather than assuming a “full coverage” phrase on a bill includes uninsured-motorist coverage. A written rejection, or a reduced UM amount, will be on that page or in an endorsement.
The report and the medical file
A canyon-road or surface-street wreck may be an LAPD report. A 405 wreck may be a CHP report. Use the official request paths in the report guide. Photograph the final rest, the sight lines, any skid or gouge marks, the helmet and the clothing, and the other vehicle’s damage, before a tow truck removes the evidence.
Get medical care immediately. Motorcycle crashes produce road rash that looks dramatic and spinal or brain injuries that are easier to miss in the first hour. Keep bills, imaging reports and work-restriction notes with the report number. The medical-bills guide covers health-plan reimbursement and early medical-payments coverage.
Do not sit for an audio statement with the other driver’s insurer during those early days, and do not guess about your speed in a canyon if you do not know it. A later read of the scene photographs is more useful than an early estimate given in pain.
Deadlines
CCP 335.1 gives two years to file an injury or death lawsuit. A government claim still has the six-month date in GOV 911.2. A child’s own ordinary claim can pause under CCP 352, and a government claim does not. If the wreck is fatal, the fatal-crash guide is the better starting point for who may bring a claim.
A serious motorcycle file is a reason to talk with an attorney while the motorcycle, the helmet and the scene evidence still exist. Bring the photographs, the report number, the declarations page and the helmet if it was damaged. Confirm the person’s California license.
Lane splitting and left turns, in ordinary language
Westside motorcycle claims often turn on a left-turning car that did not see the bike, or on a lane-change on the 405. Write down what you remember about your lights, your lane position and the other driver’s movement while it is still fresh, then stop there. You do not need to invent a number for your speed or a legal label for your lane position in the first conversation with anyone. If a later official rule or a later technical opinion becomes part of the file, it can be added then. The first job is to keep the medical file, the photographs and the report number together.
If a city or county vehicle was involved, or if a roadway condition on a public canyon road may be part of the story, treat the six-month date in GOV 911.2 as the one that arrives first. The government-claims guide names the official desks. A private-driver claim still has the two-year date under CCP 335.1, and talking with an adjuster does not pause it.
- Declarations page
- The short policy page that shows liability limits and any uninsured or underinsured coverage, which a motorcycle case often depends on once hospital bills outrun the other driver’s floor.
- Several liability
- The CIV 1431.2 rule that each defendant pays only that defendant’s share of noneconomic harm.
- Physical contact
- The unknown-driver hook in INS 11580.2, which a motorcycle case can often meet with damage to the bike or the body, if the facts fit.