can a motorcycle go between cars

[VanJake]

The legality of a motorcycle moving between lanes of traffic, often called lane splitting or lane filtering, depends entirely on the state you're in. Currently, only Utah, Montana, Arizona, and Hawaii have legalized some form of the practice, each with specific restrictions. In all other states, it remains illegal. Even where legal, it's a controversial maneuver that requires extreme caution, specific road conditions, and proper technique to be performed safely. The primary argument for it is that it can reduce motorcycle congestion and lessen the risk of a rear-end collision for the rider.

The key distinction lies in the terminology. Lane splitting typically refers to riding between lanes of moving traffic, while lane filtering describes moving between stationary or slow-moving vehicles to get to the front of an intersection. States that allow it have strict rules; for example, Utah only permits filtering when traffic is stopped and at speeds under 15 mph.

Safety is the paramount concern. Proponents cite a 2015 UC Berkeley study which found that lane splitting can be safe if done at speeds no more than 15 mph faster than surrounding traffic and at overall speeds below 50 mph. However, the risks are significant. Car drivers often don't expect a motorcycle to appear beside them in the same lane, and a sudden door opening or lane change can be catastrophic.

If you are in a state where it is legal and choose to do it, follow these best practices:

• Speed Differential: Never go more than 10-15 mph faster than the flow of traffic.
• Traffic Speed: Only consider it when traffic is moving at 30 mph or less.
• Heightened Awareness: Watch for turning vehicles, gaps in traffic where a car might switch lanes, and car doors.
• Avoid Blind Spots: Do not linger beside a vehicle where the driver cannot see you.

The following table summarizes the legal status and key rules in the states where some form of lane filtering is permitted.

State	Legal Status	Key Restrictions
Utah	Legal (Lane Filtering)	Only when traffic is stopped; max speed of 15 mph.
Montana	Legal (Lane Filtering)	Only when traffic is stopped; must be done safely.
Arizona	Legal (Lane Filtering)	Only on roads with speed limits of 45 mph or less; traffic must be stopped.
Hawaii	Legal (Lane Splitting)	Motorbikes with engine size under 50cc only; specific roads.

[ColemanAnn]

As a daily rider in California, I used to split lanes every day on my commute. It’s all about reading the situation. You only do it when traffic is crawling or completely stopped. The goal is to get out of the pack, not to race. You have to be hyper-aware of cars suddenly changing lanes. A slight turn of a driver’s head or their wheels starting to turn means you slow down immediately. It saves me a ton of time, but it’s not for the timid or inexperienced. You need to be confident and predictable.

[VanLillian]

I took a motorcycle safety course when I got my license, and the instructors were very clear on this. Unless you see a specific law for your state, you should assume it is illegal. The risk is just too high. Drivers are not looking for you in between lanes. A small mistake by either party can have severe consequences. It’s better to be safe and patient at the back of a line of traffic than to risk an accident trying to get to the front. Check your local Department of Motor Vehicles website for the official rules.

[AliyahRose]

I’ve been driving a truck for 20 years, and I’ll tell you, it still makes me jump when a bike whizzes by me in my lane. I check my mirrors, but the blind spots are big. My advice to riders is simple: if you’re going to do it where it’s legal, please make yourself seen. A headlight on during the day helps. Don’t do it at high speed, and don’t linger right next to my trailer tires. I don’t have a problem with it in heavy traffic, but it has to be done with respect for how much space we all need.

[MacElena]

From a legal standpoint, this is a gray area that is rapidly evolving. While most states prohibit it, there is a growing movement to legalize lane filtering to improve traffic flow and rider safety. The key for any rider is to know the statutes in their state and any state they are traveling through. Ignorance of the law is not a defense. If you are involved in an accident while lane splitting in a state where it is illegal, you will likely be found at fault, which can significantly impact insurance claims and liability. Always prioritize knowing the local laws over assuming a universal rule.