How Motorcycle Lane Splitting Affects Crash Claims

August 07, 20254 min read

Motorcycle riders often look for ways to avoid traffic congestion, and one controversial method is lane splitting—riding between two lanes of slower-moving or stopped traffic. While lane splitting is legal in some states under certain conditions, it remains a gray area in many places, including Arizona. This raises an important question: how does lane splitting affect crash claims when a collision occurs?

The car accident lawyer near me team explains what Arizona law says about lane splitting, how it impacts liability, and what drivers and riders need to know after a crash.


Is Lane Splitting Legal in Arizona?

As of now, lane splitting is not fully legalized in Arizona the way it is in California. Arizona law allows lane filtering under certain conditions—such as when motorcycles pass stopped vehicles on roads with speed limits of 45 mph or less—but lane splitting at higher speeds or in moving traffic is prohibited.

This distinction matters because if an accident occurs while a rider is lane splitting, it could affect how fault is determined.


How Lane Splitting Can Impact Liability

In any accident claim, Arizona applies fault-based rules. This means the person who caused the crash is financially responsible for damages. However, lane splitting may complicate things:

  • If the motorcycle is lane splitting illegally, the rider could be found partially at fault, reducing potential compensation.

  • If the driver of a car changes lanes without signaling or paying attention, they could still be primarily responsible for causing the crash.

Arizona’s pure comparative negligence law allows both parties to share fault. For example, if a motorcycle rider is found 30% at fault for lane splitting, they can still recover damages, but their award is reduced by 30%.


Common Types of Lane Splitting Collisions

Collisions involving lane splitting often happen in congested areas such as Downtown Tempe or during heavy freeway traffic. Common scenarios include:

  • A driver suddenly opens a car door while traffic is stopped.

  • A car drifts out of its lane without checking mirrors.

  • A driver changes lanes abruptly, not expecting a motorcycle in between.

Crashes like these often result in serious injuries, as motorcycle riders are more exposed. Injuries may include spinal cord damage, traumatic brain injuries, and broken bones.


How Insurance Companies Handle Lane Splitting Cases

Insurance adjusters often scrutinize lane splitting crashes carefully. They may argue the rider assumed extra risk by lane splitting, even if another driver caused the crash. This can lead to delays or lower settlement offers.

Motorcyclists should be prepared to show evidence of safe riding practices, including:

  • Helmet use and protective gear

  • Dashcam or helmet camera footage

  • Eyewitness statements confirming the driver’s unsafe action

Linking to legal resources and guidance, such as Arizona’s motorcycle laws and accident claim steps, can also help riders understand their rights.


What Happens if the Motorcycle Rider Is Seriously Injured?

Motorcycle riders involved in lane splitting crashes often suffer severe injuries due to limited protection. Some of the most common injuries include:

  • Road rash and deep lacerations

  • Fractures and dislocations

  • Head and spinal injuries leading to partial or full paralysis (paralysis injury information)

These injuries often require hospitalization, physical therapy, and long-term care, which makes determining fault—and ensuring full compensation—critical.


Are There Situations Where the Rider Isn’t at Fault?

Yes. Even if lane splitting is restricted, there are times when the driver of a car or truck is fully or primarily responsible:

If the driver was impaired, distracted, or reckless, they could still be held liable even if lane splitting was involved.


How Riders Can Protect Themselves

To reduce both crash risk and liability disputes, riders can:

  • Avoid lane splitting at high speeds or in moving traffic

  • Wear visible gear to increase visibility

  • Keep dashcam footage when possible for evidence in case of a claim

  • Be aware of high-risk areas like congested intersections and parking lot zones (parking lot collision guidance)

Following these safety steps doesn’t just prevent crashes—it strengthens your position if a claim is disputed.


Final Thoughts

Lane splitting remains a controversial practice in Arizona, and accidents involving this maneuver often lead to complicated insurance and liability disputes. While fault still depends on the specific actions of all parties involved, lane splitting may reduce the compensation a rider receives if it’s deemed a contributing factor.

Motorcyclists who understand Arizona’s laws, avoid risky maneuvers, and document their riding behavior can better protect themselves after a crash. Drivers should also remain alert and check mirrors before changing lanes to help reduce accidents involving motorcycles altogether.

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