Many motorcycle accidents in Michigan come down to a single question: who was at fault? One maneuver that puts that question squarely on the rider is lane splitting. Every rider stuck in stopped traffic on a hot day has thought about weaving between the cars, but it is not allowed in Michigan, and doing it can cost you far more than a ticket if a crash follows. Here is what the law actually says, what it does allow, and why the answer matters most after an accident.
No. Lane splitting, sometimes called white lining, means riding between two lanes of traffic or between rows of vehicles. Lane filtering, slipping between stopped cars at a light, and riding the shoulder to bypass traffic are treated the same way. All of them are prohibited.
The rule comes from MCL 257.660, which sets out how motorcycles must use the road. It gives a motorcycle the right to full use of a lane, so a car cannot crowd you out of one, but it also requires riders to stay within a lane and not pass between lines of traffic. Michigan has not passed any law to allow lane splitting or filtering, so law enforcement treats the maneuver as an improper-passing or lane-use violation.
The confusion usually comes from lane sharing, which is different and legal. Under the same statute, two motorcycles may ride side by side in a single lane, but no more than two abreast. That is lane sharing between two riders, not lane splitting past cars.
So the line is simple. Two bikes together in one lane is fine. One bike squeezing between lanes of cars is not.
This is where it stops being about a ticket. If you were lane splitting when a crash happened, the insurance company will use it against you, and Michigan law gives them an opening.
Michigan follows a modified comparative fault rule under MCL 600.2959. If you are found more than 50 percent at fault for a crash, you cannot recover anything for pain and suffering. If you are partly at fault, your recovery is reduced by your share. On top of that, to pursue noneconomic damages at all, your injury has to meet the serious-impairment threshold in MCL 500.3135.
Being cited for lane splitting does not automatically end your claim, though. The other driver may share fault, for example by changing lanes without signaling, opening a door, or failing to look. Michigan’s no-fault system also treats motorcycles differently from cars, so which insurer pays your medical benefits depends on whether a motor vehicle was involved. A Lansing motorcycle accident lawyer can investigate how fault should really be divided rather than letting the insurer assign all of it to you.
Lane splitting is not the only rule behind motorcycle accidents in Michigan. Two others come up constantly.
Helmets
Motorcycle endorsement
Riders already face bias from insurers who assume the motorcyclist was reckless. Add a lane splitting citation and that bias gets worse, which is exactly when experienced help matters most. The other driver’s conduct, the road conditions, and the real division of fault all deserve a close look before anyone accepts blame.
Monument Legal represents injured riders in motorcycle accidents in Michigan, throughout Lansing, East Lansing, and mid-Michigan. If you were hurt, our team can review the crash, protect your claim, and handle the insurance companies while you recover. Reading the steps to take right after a crash is a good start, and no lawyer can promise a result, but early advice gives you the most options.
Is lane splitting a common cause of motorcycle accidents in Michigan?
It is one that insurers point to often, because it puts the motorcycle in a narrow, unpredictable space between vehicles where drivers do not expect it. When a crash happens during lane splitting, the rider is frequently blamed, since the maneuver itself is illegal here. That does not mean the rider is always fully at fault, but it does mean these cases start with the rider on the back foot. Lane splitting is legal in California and a few states allow limited filtering, but Michigan and its neighbors do not, so riders should treat it as prohibited.
Can two motorcycles ride side by side in Michigan?
Yes. This is lane sharing, and it is legal as long as no more than two motorcycles occupy a single lane. It is a very different thing from lane splitting, which involves a motorcycle passing cars within a lane or between lanes of traffic. Riders often confuse the two. If you and a friend want to ride together in one lane, agree on your positions and your turns in advance, use signals, and stay aware that you are still sharing a single lane’s worth of space.
If I was lane splitting when I got hit, can I still recover?
Possibly. A lane splitting citation hurts your position, but it does not automatically bar a claim. Michigan uses comparative fault, so what matters is how fault is actually divided. If the other driver was also negligent, by turning without looking or opening a door into your path, they may carry a share of the blame. As long as you are found 50 percent or less at fault, you can still pursue a claim, reduced by your percentage. A motorcycle accident lawyer in Michigan can push back on an insurer’s attempt to pin all the fault on the rider.
Do I legally have to wear a helmet in Michigan?
It depends on your age and coverage. Riders under 21 must always wear an approved helmet. Riders 21 and older can legally ride without one only if they have held a motorcycle endorsement for at least two years or completed an approved safety course, and they carry at least $20,000 in first-party medical benefits. Even when the law lets you skip it, a helmet dramatically reduces the risk of a traumatic brain injury, and insurers often raise the helmet question when valuing a head-injury claim.
This article is general legal information about Michigan law, not legal advice, and it does not create an attorney-client relationship. Every case depends on its specific facts. For advice about your situation, speak with a licensed Michigan attorney.