Motorcycle riders are relatively vulnerable in traffic. They do not have the structure of an enclosed vehicle to protect them if a crash occurs. While they may be able to ride year-round in California, depending on where they live, they are at constant risk of injury or worse.
Other motorists are generally the biggest safety concern for motorcycle riders. People in larger vehicles often fail to properly monitor traffic, leading to preventable motorcycle collisions. Those who do notice motorcycles in traffic may resent sharing the road with them and may become unnecessarily aggressive in traffic.
One of the ways that motorcycle riders may try to keep themselves safe in traffic involves riding two abreast or side by side in a single lane of traffic on a multi-lane road. Is sharing a lane with another motorcycle rider legal and safe in California?
Lane splitting is legal in California
California state traffic statutes explicitly allow motorcycle riders to share lanes as a way of easing traffic congestion. Riding side by side with another motorcycle is one way to split a lane to limit traffic congestion and improve safety. As long as riders communicate with one another and maintain adequate space between their motorcycles, they can ride side-by-side safely.
While people might overlook one motorcycle, two motorcycles side by side can appear larger and are more likely to draw people’s attention. Additionally, should a crash occur, the rider not involved can serve as an advocate and witness for the other motorcycle rider.
They can provide first aid, counter a driver’s claims that they did something unsafe and contact emergency services to get their companion help as quickly as possible. Riding together is often safer than riding alone, especially on busy highways during times of heavy traffic. Motorcycle riders who are aware of what might contribute to their overall collision risk can make safety-conscious choices that protect themselves and others on the road.
Riders also need to be ready to respond appropriately should a motorcycle collision occur. They need a plan to ensure their safety and to reduce the financial devastation that a crash could cause. Holding drivers accountable may sometimes require taking legal action, especially if a crash causes major injuries and a driver only has minimal insurance coverage.

