How many side-by-side motorcycles may travel in a line?

The correct answer is based on North Dakota law regarding the operation of motorcycles on public roadways. According to North Dakota law, two motorcycles may operate side by side in a single lane of traffic. This practice is often referred to as "riding double" and is designed to increase visibility and safety for riders, especially in areas with lower traffic.

The reasoning for limiting side-by-side motorcycles to two is likely based on the need to ensure that vehicles can safely navigate around them and maintain a manageable traffic flow. Allowing more than two motorcycles in this configuration could create challenges for other drivers and pose safety risks.

It's important to understand that while riding two motorcycles side by side is permissible, motorcyclists should always maintain awareness of their surroundings and adhere to traffic laws to ensure their safety and the safety of others on the road.