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Lane-splitting
accident lawyers.

Lane splitting is legal in California. When a driver changes lanes without checking or opens a door into your path, they're at fault — not you. We build the case on evidence, not bias.

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Lane-splitting crashes

Legal riding. Illegal bias. We fight the second, not the first.

California is the only state where lane splitting — riding a motorcycle between lanes of traffic moving in the same direction — is expressly legal, under Vehicle Code § 21658.1. The California Highway Patrol has published safety guidance suggesting riders keep speed differentials modest relative to surrounding traffic, but this is guidance, not a statutory speed limit — lane splitting itself is not negligence, and it is not a defense available to a driver whose own carelessness caused your crash.

Most lane-split crashes happen the same way: a driver changes lanes without checking a mirror or blind spot, or opens a door into the gap a rider is occupying. Because riders are frequently positioned exactly where drivers fail to look, an inattentive lane change is overwhelmingly the leading cause. When that happens, the driver — not the rider — has violated the duty of care.

The obstacle in these cases isn't usually the law. It's perception. Adjusters and even jurors sometimes carry an instinctive bias that lane splitting is reckless, regardless of its legal status, and insurers exploit that bias to negotiate down otherwise strong claims. We counter it directly — with dashcam footage, witness statements, damage pattern analysis, and a clear presentation of what California law actually says.

Under California's pure comparative fault rule (Civil Code § 1431.2), even a partial fault allegation only reduces your recovery proportionally. Contact us today — evidence like dashcam footage disappears or gets overwritten fast.

Step-by-step

What to do after a lane-split crash.

These crashes happen fast, in traffic, often with no witnesses paying close attention. Documentation is everything.

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1
At the scene
Call 911 and get a police report.

Get the officer's name, badge number, and report number. Make sure the report accurately reflects that you were lane splitting lawfully — note the traffic conditions and speeds if you can.

2
At the scene
Save your dashcam or helmet-cam footage immediately.

If you have a camera, back up the footage right away — don't let your device overwrite it with continued riding. This is often the single most decisive piece of evidence in a lane-split case.

3
At the scene
Photograph both vehicles' damage and lane positions.

Side-swipe damage patterns and the final resting lane positions of both vehicles help establish which vehicle moved into the other. Photograph the traffic conditions — was traffic stopped or slow-moving, consistent with lawful lane splitting.

4
Same day
See a doctor even if you feel okay.

Lane-split crashes often involve lower-speed but sudden impacts — shoulder, wrist, and knee injuries are common and can be masked by adrenaline. A same-day visit protects your claim.

5
Within 24 hours
Get witness contact information.

Other drivers in the same lanes may have seen the lane change that caused your crash. Get names and phone numbers before they leave — witnesses are difficult to track down later.

6
As soon as possible
Call Law Dog before speaking with any insurer.

Adjusters in lane-split cases often lead with questions designed to get you to admit fault for lane splitting itself. Do not give a recorded statement. We present the law clearly and fight the bias directly.

Common injuries

Lower-speed doesn't mean
lower severity.

Lane-split crashes often happen at lower speeds than freeway impacts, but sideswipe contact and sudden loss of control still produce serious injury.

Shoulder & Arm Injuries
Contact with a vehicle's side or mirror in a sideswipe often strikes the rider's arm and shoulder directly, causing dislocations, rotator cuff tears, and fractures.
Road Rash
Loss of control from a sideswipe frequently results in a low-side drop and slide across pavement, causing abrasion injuries that range from minor to severe.
Wrist & Hand Fractures
Riders instinctively brace with their hands during a fall, producing wrist and hand fractures that can require surgical fixation and affect grip strength long-term.
Knee & Ankle Injuries
Contact between the rider's leg and the striking vehicle, or impact with the ground during a fall, commonly causes ligament tears and fractures in the lower extremity.
Concussion & Head Injury
Even at lower speeds, an unexpected fall can result in head contact with the ground or the vehicle. Helmet damage should always be documented and examined.
Soft Tissue & Whiplash
Sudden deceleration and impact forces cause neck and back strain injuries that may not be immediately apparent but produce lasting pain and limited mobility.
What they don't want you to know

The bias playbook, exposed.

Insurers know lane splitting carries a perception problem. Here's how they weaponize it.

Tactic 01
"You shouldn't have been lane splitting at all."
This is a misstatement of California law. Lane splitting is expressly legal under Vehicle Code § 21658.1. Characterizing lawful conduct as inherently negligent is a misrepresentation designed to inflate your fault percentage — and we correct it directly, every time.
Tactic 02
"You were going too fast to be splitting safely."
CHP guidance on speed differentials is a safety recommendation, not a statutory speed limit. Even where speed is disputed, unsupported allegations don't establish fault — physical evidence and dashcam footage do. We don't let assumptions substitute for proof.
Tactic 03
"Our insured didn't see you because you were where cars don't go."
Lane splitting occurs in a legally sanctioned space. A driver's duty to check mirrors and blind spots before changing lanes does not evaporate because a motorcycle might lawfully be there. The duty to check exists precisely because riders may be present.
Tactic 04
Lowballing based on assumed contributory fault
Insurers frequently open with a settlement number that has already baked in an assumed fault percentage for lane splitting — before any investigation has occurred. We reject presumptive fault reductions and require the insurer to establish actual comparative fault with evidence.
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Questions & answers

Lane-splitting crash FAQ.

Yes. California is the only state to expressly legalize lane splitting under Vehicle Code § 21658.1, defined as riding a motorcycle between rows of stopped or slow-moving traffic in the same direction. The California Highway Patrol has published safety guidance suggesting a speed differential of no more than 10 mph relative to surrounding traffic — but these are safety guidelines, not statutory speed limits.
Because insurers know many jurors and adjusters have a gut reaction that lane splitting is inherently risky, regardless of its legal status. This bias is a tool insurers use to negotiate down settlements even in cases where the other driver was clearly negligent. Lawful conduct cannot be treated as comparative fault just because it makes some people uncomfortable.
A driver changing lanes without checking their mirrors or blind spot, moving into the space a lane-splitting rider is occupying. Because the rider is often in a driver's blind spot by definition of the maneuver, an inattentive lane change is the single most common cause. Other frequent causes include a driver opening a door into the lane and sudden unsignaled lane changes in heavy traffic.
It can be a factor, but it is not automatically disqualifying. If you were splitting at a reasonable speed differential consistent with CHP guidance, insurers have a much weaker argument for shifting fault to you. Even a partial fault finding under California's pure comparative fault rule only reduces your recovery proportionally — it doesn't eliminate your claim.
Dashcam footage from your own bike or nearby vehicles, the police report, witness statements from other drivers who saw the lane change, and damage patterns on both vehicles, which typically show a side-swipe or door-strike signature. We also look for evidence the driver failed to signal through dashcam video, when available.
Two years from the date of the crash under California Code of Civil Procedure § 335.1. If a government vehicle or employee was involved, the deadline is six months under Government Code § 911.2. Call an attorney as soon as you are physically able — evidence like dashcam footage and witness memory degrades quickly.
Time limit

Two years to file. Dashcam footage disappears much faster.

California Code of Civil Procedure § 335.1 gives you two years from the crash date to file a personal injury lawsuit. But dashcam footage — from your bike, nearby vehicles, or business cameras — is frequently overwritten within days. If a government vehicle or road defect contributed, the deadline is six months under Government Code § 911.2. Act now to lock down the evidence that proves what actually happened.

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