A driver changes lanes as you pass between slow-moving cars. You’re knocked off your motorcycle, but the driver says you came out of nowhere. Their insurance company questions why you were splitting lanes in the first place.
Lane splitting in California is legal, provided it’s “safe and prudent” under the law. CHP lane splitting guidelines help explain safety concerns, but they don’t establish motorcycle fault alone. An insurer may still argue that your speed, position, or timing caused the crash.
If you’ve been injured while riding, call Brennan Law immediately. Our motorcycle accident liability lawyers can investigate your crash, gather the evidence needed to establish fault, and push back when insurers blame you for lane splitting.
What legal lane splitting actually requires
California Vehicle Code Section 21658.1 defines lane splitting as riding a motorcycle between rows of stopped or moving vehicles on divided or undivided roads. It does not set a specific lane-splitting speed limit or maximum speed difference between a motorcycle and traffic conditions.
But that doesn’t mean every maneuver is safe. CHP safety guidelines warn that crash risks increase when riders travel fast or move faster than surrounding traffic. A reasonable speed differential depends on traffic conditions, visibility, and available space.
The CHP also recommends splitting between the far-left lanes when possible, avoiding large vehicles, and staying out of blind spots. Riding on the shoulder does not qualify as lane splitting.
Shifting blame
“She came out of nowhere” is the most common excuse at-fault drivers make. What it really means is the driver failed to look before turning or changing lanes. In fact, in two-thirds of motorcycle crashes, the other driver violates the motorcyclist’s right of way.
Yet insurance company bias repeatedly shifts the blame to the rider simply because they split lanes. They may accuse riders of speeding, stereotype riders as unsafe, or pressure them to give a recorded statement before getting legal advice.
Proving fault when insurers assume the rider is to blame
When driver and rider accounts conflict, evidence can help establish which actions caused the collision. Investigators typically consider:
- The rider’s speed compared to surrounding traffic.
- Whether a driver signaled or checked a mirror before changing lanes.
- Whether either party broke a traffic law before impact.
Without an accident injury attorney on your side, insurance adjusters will use this evidence to build a case against you.
At Brennan Law, we push back against common insurer tactics. To support your claim, we’ll pull dashcam and witness evidence, work with speed reconstruction specialists, and negotiate with adjusters on your behalf.
If an insurance company is using lane splitting to deny or reduce your claim, contact us for a free consultation. California’s comparative negligence laws mean you can still recover compensation, even when the insurer claims you’re partly at fault.
The damage of a crash lingers long after a hospital stay. Don’t wait — call today.