What is the displacement requirement for motorcycles to ride on highways?

[McMaci]

Motorcycles with a displacement of over 50cc are allowed on highways. According to Article 67 of the Road Traffic Safety Law of the People's Republic of China: pedestrians, non-motor vehicles, tractors, wheeled special machinery vehicles, articulated buses, full trailer trucks, and other motor vehicles with a designed maximum speed of less than 70 kilometers per hour are prohibited from entering highways. The above regulations do not include motorcycles. Additional requirements for motorcycles on highways: 1. There are clear speed regulations on highways. The maximum speed for cars is 120 km/h, but motorcycles cannot exceed 80 km/h and cannot go below 60 km/h. This can be challenging for riders who are not good at controlling speed. There is only a 20 km/h fluctuation within this speed range, making it easy to exceed the speed limit or fall below the minimum speed limit. 2. When riding a motorcycle on the highway, the driver's license, vehicle registration certificate, helmet, etc., must be carried. Additionally, carrying passengers on the back seat is not allowed. Riding a motorcycle on the highway without even the most basic helmet is very dangerous.