By Sami Sedghani, Pharm.D., J.D. · Synergist Law, P.C. · San Rafael, California · Updated October 28, 2026
This page provides general information only about California law and about bicycle and e-bike rules adopted by public agencies in Marin County. It is not legal advice, and reading it does not create an attorney-client relationship. Every case depends on its own facts. For advice about your situation, consult a licensed California attorney.
A bicycle accident lawyer in Marin County works with two sets of rules. The Vehicle Code governs every rider and driver in California. Marin has added its own rules for e-bikes, paved paths, open space, and the Mt. Tamalpais Watershed. Which rules applied at the spot, and who had to follow them, usually decides how fault is shared and which insurance pays. That is as true for a road bike on Paradise Drive as for a Class 2 e-bike near a school.
Bike collision data for College Avenue is on our Kentfield injury page, and countywide bicycle and pedestrian injury figures are on our Marin County personal injury page. For crashes across the bridge, see our San Francisco personal injury page.
Cyclist hit by a car: who may be responsible
A cyclist on the road has a driver’s rights and a driver’s duties. Vehicle Code section 21200 gives a person riding a bicycle on a highway all the rights and duties of a vehicle driver, except those that by their nature cannot apply. Drivers also owe duties written specifically for bicycles:
- Unsafe passing. The Three Feet for Safety Act, section 21760, applies when a driver overtakes and passes a bicycle going the same direction. The driver must pass at a safe distance, with at least three feet between any part of the vehicle and any part of the bicycle or rider. If traffic or road conditions make three feet impossible, the driver must slow to a reasonable and prudent speed and pass only when it would not endanger the rider. Since January 1, 2023 (Assembly Bill 1909), a driver passing a bicycle in the same lane must first change into another available lane going the same direction, if practicable and not prohibited by law.
- Right hooks across a bike lane. A driver turning right across an adjacent bike lane must first move into the bike lane and then turn (§ 21717). Drivers may enter a bike lane only to park where allowed, to enter or leave the roadway, or to prepare for a turn within 200 feet of the intersection (§ 21209).
- Left turns and stop signs. A driver turning left (§ 21801) or entering from a stop sign (§ 21802) must yield to vehicles close enough to be a hazard, and a cyclist has a driver’s rights.
Dooring accidents
A dooring accident happens when someone opens a parked car’s door into a rider’s path. Vehicle Code section 22517 bars anyone from opening a door on the side available to moving traffic unless it is reasonably safe and can be done without interfering with traffic. Nor may anyone leave that door open longer than needed to load or unload. The rule applies to “any person,” so a passenger who opens the door can be responsible along with, or instead of, the driver. For a rideshare vehicle, coverage tied to the trip may apply; see our rideshare accident page.
The rules insurers raise against cyclists
The driver’s insurer often argues that the rider broke one of these rules, each of which has exceptions:
- Riding far right. A cyclist slower than traffic must ride as close as practicable to the right edge (§ 21202). The exceptions are passing, preparing for a left turn, approaching a place where a right turn is allowed, and avoiding hazards. Parked cars, debris, pedestrians, and a lane too narrow for a bike and a car to share side by side all qualify.
- Bike lanes. Where a bike lane exists, a cyclist riding slower than the normal speed of traffic must ride in it (§ 21208). The exceptions are passing when it cannot be done safely within the lane, preparing for a left turn, avoiding debris or other hazards, and approaching a place where a right turn is authorized. Leaving the lane must be reasonably safe, with a signal if traffic may be affected.
- Direction. Bicycles on the roadway or shoulder must travel in the same direction as cars (§ 21650.1).
- Lights and reflectors. At night, a bicycle needs a white front light visible from 300 feet, a red rear reflector or light, pedal or shoe reflectors, and side reflectors or reflective tires (§ 21201(d)). An e-bike must show the rear red reflector or light at all hours (§ 21201(f)).
- Helmets. Riders and passengers under 18 on a bicycle must wear a helmet (§ 21212), and e-bike riders follow the same bicycle rules (§ 312.5(b)). Every Class 3 e-bike rider and passenger must wear one at any age (§ 21213). Marin’s local ordinances under § 21214.5 also require helmets for Class 2 riders, according to the County. Adults on conventional bikes and Class 1 e-bikes are not required to wear one.
Breaking one of these rules does not by itself bar recovery. California uses pure comparative fault under Li v. Yellow Cab Co. (1975) 13 Cal.3d 804, so a rider’s share of fault, if any, reduces the recovery rather than eliminating it. The question is whether the conduct contributed to the crash or the injury.
Riding without a helmet does not bar a claim either. The defense may argue that a helmet would have lessened a head injury and that damages should be reduced as comparative fault. The helmet statutes themselves do not say how a missing helmet bears on an injury claim, and the argument has little bearing on injuries a helmet would not have affected, such as a broken wrist.
Hit by a car while riding a bike: reports and evidence in Marin
Which agency has the report depends on location. Crashes on Highway 101, Interstate 580, other state highways, and roads in unincorporated Marin, including most of West Marin, are generally handled by the California Highway Patrol’s Marin Area office. The CHP releases reports to involved parties through its crash report request page. Crashes on city streets usually go to that city’s police department. Our Marin County page lists the agency for each town.
The bike, helmet, and clothing show where the impact landed. Bike computers, ride-tracking apps, and cameras can show speed and lane position. Business and vehicle video is often recorded over within days.
Road and path defects: claims against public agencies
Potholes, root heaves on paths, sunken drain grates, and debris can throw a rider at speed. Under Government Code section 835, a public entity can be responsible for a dangerous condition of its property if its employee created the condition or it had notice in time to fix it. In Marin, the owner might be Caltrans, the County, a city or town, or a district, and paths often cross from one owner to another. A written claim generally must be presented to the public entity within six months under section 911.2. Because the deadline depends on the facts, it is better to have a licensed California attorney determine the deadline that applies than to calculate it yourself.
E-bike accidents in Marin County
An e-bike accident lawyer asks a question conventional bike cases never raise: what kind of device was involved? Under Vehicle Code section 312.5, an electric bicycle has fully operable pedals and a motor of no more than 750 watts, and it falls into one of three classes. E-bike riders follow the same rules of the road as cyclists (§ 312.5(b)). Under section 24016(b), an e-bike is not a motor vehicle, and its rider needs no license, registration, or insurance.
| Class | How the motor works | State age and helmet rules | Change in Marin since mid-2025 |
|---|---|---|---|
| Class 1 | Assists only while pedaling; stops assisting at 20 mph | No minimum age. Helmet required under 18. | None |
| Class 2 | Throttle can propel the bike without pedaling; no assistance above 20 mph | No minimum age. Helmet required under 18. | Riders must be 16 or older, and helmets are required at every age |
| Class 3 | Assists only while pedaling; stops assisting at 28 mph; must have a speedometer | Riders must be 16 or older. Helmet required for every rider and passenger (§ 21213). | None |
Marin’s e-bike pilot law (AB 1778)
Marin has its own state law. Vehicle Code section 21214.5, the Marin Electric Bicycle Safety Pilot Program, was added by Assembly Bill 1778 (Connolly, 2024). It lets the County and each Marin city or town bar riders under 16 from Class 2 e-bikes and require helmets for all Class 2 riders. Violations bring warnings for 60 days, then a $25 infraction. The pilot ends January 1, 2029. According to the County of Marin’s youth e-bike safety page, every Marin jurisdiction adopted an ordinance doing both.
| Effective date | Jurisdictions |
|---|---|
| July 1, 2025 | Unincorporated Marin County, Belvedere, Corte Madera, Fairfax, Larkspur, Mill Valley, San Anselmo, Tiburon |
| August 1, 2025 | Sausalito |
| August 22, 2025 | Novato |
| September 2, 2025 | San Rafael |
| September 14, 2025 | Ross |
The County reports that riders 10 to 15 have an e-bike accident rate five times that of all other age groups.
Where each e-bike class may ride in Marin
The agency that manages an equestrian, hiking, or recreational trail can decide which e-bikes may use it (§ 21207.5). State Parks can do the same on its paths and trails. In Marin, the rules depend on who owns the ground:
- County paved paths. The County’s e-bike laws page allows Class 1 and Class 2 e-bikes, but not Class 3, on County-maintained paved pathways, with a 15 mph limit for all bicycles (10 mph where posted). A November 2025 City of Novato advisory also says Class 3 e-bikes are not allowed on multi-use pathways in Marin.
- County open space preserves. According to Marin County Parks, the Marin County Code prohibits motorized vehicles on Open Space District roads and trails. The District has proposed allowing Class 1 e-bikes on fire roads and trails already open to bicycles. That proposal was still under review in 2026, so the current rule for a given preserve should be confirmed with Marin County Parks.
- Mt. Tamalpais Watershed. Marin Water’s Class 1 pilot began July 1, 2025, for up to two years. Class 1 e-bikes may go on watershed roads where conventional bikes are allowed; Class 2 and Class 3 remain prohibited.
Modified e-bikes and “e-motos”
Some devices sold as e-bikes are not e-bikes in law. A device built to be modified, or already modified, to exceed 20 mph on motor power alone falls outside the definition. So does one with a motor over 750 watts or with its pedals removed, and none of these may be sold as an e-bike (§ 312.5(d)). Assembly Bill 1774 (effective 2025) and Assembly Bill 545 (effective 2026) bar modifying an e-bike outside the legal definition and selling products or apps that do so (§ 24016(d), (e)). Senate Bill 1167, signed in September 2026, revises the definitions of mopeds and motor-driven cycles. As its provisions take effect, e-bike labels will carry brand and manufacturer information, and officers will record device details in crash reports. In a claim, the label, motor rating, and actual top speed can become evidence. A device that is legally a moped or motorcycle carries licensing and insurance rules that a true e-bike does not.
Redwood Bikeshare and rented e-bikes
Redwood Bikeshare is an e-bike share system run by Drop Mobility under a pilot with the Transportation Authority of Marin and Sonoma County’s transportation authority. In Marin, its website lists service in San Rafael and Larkspur, and the City of Novato announced a Novato launch in May 2025. The Redwood Bikeshare terms of use (effective August 21, 2024) include an assumption of risk and a release of the operator, participating cities, sponsors, and nearby property owners. They also state that the operator provides no injury insurance and that a rider’s homeowners, renters, or auto policy might not cover a crash.
A signed release is not always the end of the question. In City of Santa Barbara v. Superior Court (2007) 41 Cal.4th 747, the California Supreme Court held that a release of liability for future gross negligence is generally unenforceable. Whether a release reaches a particular claim depends on its wording and the facts. A driver who hit the rider is not among the parties the release names.
When an e-bike rider causes the crash
An injured pedestrian or cyclist can bring a negligence claim against an e-bike rider, and fault can be shared. The harder problem is insurance. Because an e-bike is not a motor vehicle, the rider has no required liability coverage, and an auto policy’s liability coverage generally does not extend to it. A homeowners or renters policy may respond or may exclude the claim, depending on its wording and the bike’s motor. When the rider is a minor, questions about the parents’ own conduct can come up, depending on the facts.
Defective bicycles, e-bikes, and batteries
Sometimes the problem is the bike itself. When a frame or fork breaks, a brake fails, a motor surges, or a battery catches fire, the claim may be against the product rather than a driver. California applies strict product liability under Greenman v. Yuba Power Products, Inc. (1963) 59 Cal.2d 57. Our product liability page explains how those claims work.
E-bike battery rules changed on January 1, 2026. Under Health and Safety Code section 26302, added by Senate Bill 1271, an e-bike cannot be sold or leased in California unless an accredited laboratory has tested its battery. The test must meet a standard referenced in UL 2849 or EN 15194, or another standard the State Fire Marshal adopts. The lab’s mark must be affixed, and sellers must provide the test report on request (§ 26304). Rental e-bikes follow in 2028 (§ 26303).
The bike, battery, charger, purchase record, and online listing are usually the key proof. Repairs, disposal, or a warranty return can destroy what an engineer would need to examine.
What affects a bicycle accident claim
There is no standard bicycle accident settlement amount. Value generally depends on the injury and its permanence, the medical expenses and lost income, how clearly the crash caused the harm, and how fault is shared. Recoverable past medical expenses are generally limited to the amounts actually paid or owed under Howell v. Hamilton Meats & Provisions, Inc. (2011) 52 Cal.4th 541.
Who the defendant is, and what coverage exists, often matters as much as the injury. For auto policies issued or renewed since January 1, 2025, California’s minimum liability limits are $30,000 per person and $60,000 per accident (Vehicle Code § 16056). A driver carrying only those limits is a very different source of recovery from a commercial fleet with business coverage. So are a bike or battery manufacturer, a public agency, and an uninsured e-bike rider. When injuries exceed the available insurance, collecting more from an individual can be difficult, so we identify every defendant and policy early. Crashes with delivery vans and trucks are covered on our delivery driver accident page.
How we prepare a bicycle accident case
We start with the scene and the bike. Where did the impact happen, and which rules applied at that spot? For an e-bike, we look at the class label, motor rating, battery markings, and whether it was modified. We then gather the crash report, video, and ride data and send preservation letters.
Insurers often dispute fractures that heal with lasting limits, shoulder and knee injuries blamed on prior wear, and concussions. A concussion may not appear on a CT scan, and a helmet does not rule out a traumatic brain injury. Sami trained as a pharmacist at UCSF and spent nine years at large law firms representing companies in complex litigation. We read the medical records looking at what the defense will question: medication history, gaps in care, and whether the chart ties the symptoms to the crash. That background does not predict how a case will turn out. It shapes how we prepare one.
Bicycle accident lawyer FAQ
I was hit by a car while riding a bike. Who pays?
If the driver was at fault, the driver’s auto liability insurance is usually the first source. Depending on the facts, the driver’s employer, a manufacturer, or a public agency may also be responsible. Hold off on recorded statements until you consult with a licensed attorney.
Who is responsible in a dooring accident?
Usually the person who opened the door. Vehicle Code section 22517 bars anyone, driver or passenger, from opening a door on the traffic side unless it is reasonably safe. The vehicle’s auto insurance is often the starting point for the claim, and fault can be shared if other facts contributed.
Do cyclists have to ride in the bike lane in California?
Not always. Where a bike lane exists, a cyclist riding slower than the normal speed of traffic must use it, with exceptions (Vehicle Code § 21208). The rider may leave the lane to pass when passing cannot be done safely within it, to prepare for a left turn, or to avoid debris or other hazards. Approaching a place where a right turn is authorized is also an exception. Without a bike lane, the rider must stay as far right as practicable, with similar exceptions, including lanes too narrow to share (§ 21202).
Do I need a helmet on a bike or e-bike in Marin County?
Riders under 18 on any bicycle or e-bike must wear one, and so must every Class 3 e-bike rider at any age (Vehicle Code §§ 21212, 21213). Marin’s 2025 local ordinances under § 21214.5, according to the County, also require helmets for Class 2 (throttle) e-bike riders of all ages. Adults on conventional bikes and Class 1 e-bikes are not required to wear one. Riding without a helmet does not bar an injury claim, though the defense may argue it as comparative fault for a head injury.
Can a child under 16 ride an e-bike in Marin?
Only a Class 1 (pedal-assist) e-bike. State law bars riders under 16 from Class 3 e-bikes, and since mid-2025 Marin County and all of its cities and towns bar them from Class 2 e-bikes.
Does homeowners or renters insurance cover an e-bike accident?
Sometimes. E-bike riders are not required to carry insurance, and coverage under a homeowners or renters policy depends on the policy’s wording, including any exclusion for motorized vehicles. The Redwood Bikeshare terms warn riders that these policies might not cover a crash.
How long do I have to file a bicycle accident claim in California?
For most injury claims, the general rule is two years from the injury under Code of Civil Procedure section 335.1. A claim against a public entity, for example over a dangerous road or path, generally must be presented within six months under Government Code section 911.2. For an injured minor, the two-year period is generally paused until age 18, but that pause does not apply to the public-entity claim (CCP § 352). Because the deadline depends on the facts, it is better to have a licensed California attorney determine the deadline that applies than to calculate it yourself.
Is there a bicycle accident lawyer in San Rafael?
Yes. Our office is in downtown San Rafael, and we handle bicycle and e-bike cases throughout Marin County. San Rafael street data is on our San Rafael injury page.
Talk to a bicycle accident lawyer in Marin County
If you or your child was seriously hurt on a bike or e-bike, we can review the report, the bike, the insurance, and the medical records. We take cases from San Rafael, Novato, San Anselmo, Corte Madera, and the rest of Marin. Our bicycle accident attorney, Sami Sedghani, Pharm.D., J.D., handles these cases personally. Call (415) 835-4448 or request a free consultation. More answers are on our personal injury FAQ page and car accident page. Se habla español. Office: 1299 4th Street, Suite 301, San Rafael, CA 94901.
Contingency fee: no attorney’s fee unless we obtain a recovery for you. Depending on the terms of your written fee agreement, you may be responsible for case costs we advance even if there is no recovery. Your fee agreement explains this before representation begins.
Bicycle and e-bike laws and local rules described here may change after the date shown above, and agencies may update their path and trail rules at any time. Every case turns on its own facts, and nothing on this page predicts any outcome, timeline, or value in your matter.