Most bicycle injury claims in California are resolved without a lawsuit ever being filed. That does not make the filing deadline unimportant — it is absolute, and missing it generally ends the claim — but it does mean the deadline people ask about is rarely the one that decides the outcome. Two separate timing systems apply depending on who is responsible, and the shorter of the two is the one cyclists are most likely to run into without realising it. Below is how each works, what happens in the months before any lawsuit exists, and why the practical clock runs faster than the legal one.
Key Takeaways
- The general deadline for a personal injury lawsuit in California is two years from the date of injury.
- Where a public entity may be responsible, a written claim must be presented first, and that deadline is six months.
- Public entity involvement is more common in bicycle cases than most people expect, because roadway surface, bike lane design and signal operation can all be part of what happened.
- Certain circumstances change the clock, including claims brought by minors and injuries that were not discoverable at the time.
- Filing suit is one step in a sequence, and most claims conclude before reaching it.
- The evidence that decides a claim disappears on a much shorter timetable than either legal deadline.
Two Deadline Systems
Claims against a private party
Where the responsible party is a driver, a business or another private party, the general rule is two years from the date of injury, under Code of Civil Procedure section 335.1. Our page on California bicycle accident claims sets out that deadline and the situations in which a different period applies.
Claims involving a public entity
If a city, county, transit agency, school district or state body may share responsibility, a lawsuit is not the first step and the two-year period is not the operative deadline. California requires a written claim to be presented to the entity first, and the California Courts self-help guide sets out the sequence:
- Six months from the injury to present the claim, where the claim concerns injury to a person or damage to something owned.
- 45 days for the government to respond to the claim.
- Six months from the date a rejection was mailed to file a lawsuit, where the claim is denied.
- Where the government does not respond within the 45-day period, generally up to two years from the injury date to start a case.
The six-month figure is the one that catches people. It is a quarter of the general period, it starts on the date of the collision rather than on the date anyone identifies a public entity as responsible, and it can pass while a cyclist is still in treatment and has not yet thought about a claim at all.
Why this matters more for cyclists
Public entity responsibility comes up in bicycle cases more often than in ordinary vehicle collisions, because the roadway itself is more frequently part of the story. A surface defect, a drainage grate, a bike lane that ends without warning or routes riders into a conflict point, an obstructed sight line, a signal that does not detect a bicycle, or a collision involving a public fleet vehicle can all put a public entity in the picture.
This is why the identity of everyone potentially responsible is worth establishing early rather than after treatment concludes. The six-month deadline runs whether or not anyone has worked out that it applies.
Circumstances That Change the Clock
Several situations alter the standard timing, and the California Courts self-help guide describes two that arise regularly.
Claims brought by a minor. The running of the deadline may be suspended while the injured person is a minor, and resumes when that reason ends — for instance when the person turns 18.
Injuries not discovered immediately. Where a problem was not discovered right away, the period generally starts from the date it was discovered or reasonably should have been discovered, whichever comes first.
Both are exceptions with their own requirements rather than general extensions, and whether either applies to a particular situation is a question worth having answered rather than assumed. The consequence of assuming wrongly is the loss of the claim.
Filing a Lawsuit Is Not the First Step
A lawsuit is a mechanism for resolving a claim that has not resolved otherwise. Most claims do not reach it, and a lawyer taking a bicycle case does not usually begin by filing one.
What generally happens first:
- Establishing who may be responsible. A driver, an employer if the driver was working, a vehicle owner, a company responsible for a work zone or an obstruction, a public entity responsible for the roadway, or a manufacturer where a component failed. This determines which deadline system applies, which is why it comes first.
- Preserving evidence before it is gone. Sending preservation demands, securing camera footage, and keeping the bicycle and equipment in the condition they were in.
- Notifying insurers and opening claims, including claims under the cyclist’s own policy where coverage may apply.
- Presenting a government claim where a public entity may be responsible, within the six-month period.
- Documenting the injury and its consequences through the treatment record, and understanding what the medical picture looks like before valuing anything.
- Making a demand once there is enough information to support one.
- Negotiating, which resolves a large share of claims.
- Filing suit where negotiation does not resolve the claim, or where a deadline is approaching and the claim is not ready to conclude.
Where a claim is shared between the cyclist and another party, how responsibility is apportioned affects what a resolution looks like. Our page on pure comparative fault in California explains how that works.
The Evidence Clock Runs Faster Than the Filing Clock
This is the practical point that the two-year figure obscures.
Camera footage held by homes, businesses, transit vehicles and other road users is overwritten on cycles measured in days. Bicycles get repaired, replaced or thrown away. Damaged components are discarded. Roadway surfaces are resurfaced and markings repainted, which can permanently remove the condition that caused a collision. Witnesses move and stop remembering detail. Recorded ride data sits on a device or in an account that may be wiped, reset or closed.
None of that waits two years, and none of it waits six months. A claim brought inside every legal deadline can still fail because the material that would have proved it no longer exists. The work that decides most bicycle cases happens long before any deadline becomes relevant.
What Helps in the Meantime
- Keep the bicycle, helmet, clothing and equipment unrepaired and unwashed.
- Export and save any recorded ride data rather than leaving it on a device or in an app.
- Photograph the location, including the roadway surface, lane markings, signage, sight lines and any obstruction, as soon as practicable.
- Note the responding agency and the collision report number.
- Collect contact details for anyone who stopped, including those who did not stay.
- Keep every piece of correspondence from any insurer, and note what was said in any call.
- Decline recorded statements and sign nothing before speaking with a lawyer.
- Keep a dated record of expenses and of time missed from work.
Talk to a California Bicycle Accident Lawyer
Vaksman Khalfin, PC represents injured cyclists throughout California. If a collision has left you considering a claim, a free consultation can identify which deadline applies to your situation, who may be responsible, and what should be preserved now. Call (650) 250-0705, schedule a free consultation, or read more about California bicycle accident claims and the wider California personal injury practice.
Reviewed by Alan D. Khalfin, Partner and Managing Attorney, Vaksman Khalfin, PC (admitted in California). Last reviewed: 10/05/2026
Frequently Asked Questions
The general deadline for a personal injury lawsuit is two years from the date of injury under Code of Civil Procedure section 335.1. If a public entity may be responsible, a written claim must be presented to that entity within six months of the injury before any lawsuit, which is a much shorter timeline. Certain circumstances change these periods, so the applicable deadline is worth confirming rather than estimating.
A written claim generally must be presented to the entity within six months of the injury. The California Courts self-help guide states that the government then has 45 days to respond, that a denial gives six months from the date the rejection was mailed to file suit, and that where the government does not respond within 45 days there is generally up to two years from the injury date to start a case.
Yes, where another party was responsible. A cyclist has the same right to bring a claim as any other injured person, and being partly responsible does not bar a claim in California — it reduces the recovery by that share.
No. Most injury claims are resolved through an insurance claim and negotiation without a lawsuit being filed. Filing is one route to resolution rather than the starting point, though a claim that cannot be resolved may need to be filed before its deadline expires.
The running of a deadline may be suspended while the injured person is a minor and resume when that reason ends, such as when the person turns 18. Claims involving a public entity have their own requirements. How this applies in a particular situation should be confirmed with a lawyer rather than assumed.
Where a problem was not discovered right away, the period generally runs from when it was discovered or reasonably should have been discovered, whichever comes first. This is an exception with its own requirements rather than a general extension.
Not necessarily, and it is worth asking rather than concluding. Which deadline applies depends on who is responsible, and more than one may be in play. If a public entity may be involved and six months has passed, that should be raised immediately rather than left.
The initial consultation is free. If the firm takes a case, attorney's fees are contingent on a recovery; case costs are a separate category, and how they are handled is set out in the written fee agreement before any representation begins.
