What displacement motorcycles are allowed on highways?

[Barbosa]

Motorcycles with an engine displacement of 50cc or above are permitted on highways. Below is relevant information about motorcycles: 1. Basic components: A motorcycle consists of five main parts - the engine, transmission system, running gear, steering and braking systems, and electrical instrumentation. 2. Working principle: Four-stroke engines are widely used. In a four-stroke engine, the piston completes four reciprocating movements for each ignition in the cylinder. During this process: The intake valve opens while the piston moves downward, drawing the air-fuel mixture into the cylinder. Both intake and exhaust valves close as the piston moves upward, compressing the mixture. When the mixture reaches maximum compression, the spark plug ignites it, and the resulting combustion pressure drives the piston downward, rotating the crankshaft.

[SanJoy]

I've researched this, motorcycles with too small displacement really can't handle highways. Chinese traffic regulations stipulate a minimum displacement requirement of 50cc or above for highway access, because vehicles below 50cc have a maximum speed lower than 60 km/h, which can easily obstruct traffic flow and cause accidents on highways. I recall seeing data that small-displacement vehicles have longer emergency braking distances and insufficient power, posing high risks if encountering large vehicles overtaking with no time to dodge. Enforcement varies slightly by region, with some provinces adding conditions like wearing helmets, no passengers, or requiring a driver's license. Basically, mopeds with displacement under 50cc can't enter toll stations and must take national roads. When choosing a motorcycle, 125cc or 150cc models are more reliable, offering stable power and better handling. Always check the vehicle's condition for safety first to avoid fines affecting your journey.

[LaCassandra]

Riding a motorcycle on the highway, engine displacement is crucial for safety details. Bikes below 50cc can't keep up with the mainstream speed of 120 km/h on highways; with strong wind resistance, they tend to wobble—I've personally experienced the poor stability of small-displacement bikes. Larger displacements, like 150cc, provide sufficient engine output, making cruising at 80-100 km/h effortless and helping avoid rear-end collisions. In terms of safety, small-displacement bikes have slower brake response and are prone to losing control during emergency lane changes at high speeds. It's advisable to choose models with displacements between 50cc and 125cc, which are both legal and reduce potential collision risks. Don't forget to wear reflective vests and install crash bars, as highway driving conditions test the overall performance of the vehicle.

[LeIsabela]

I've been riding motorcycles for over a decade. When I tried to enter the highway with a 50cc scooter, I was denied entry by the toll booth staff who said the displacement was too low and non-compliant. After switching to a 125cc motorcycle, I had no issues on the highway and felt much more stable. Small-displacement bikes accelerate slowly, and the strong wind noise at high speeds makes them quite dangerous. A friend of mine got fined for sneaking onto the highway with a 40cc bike. Experience shows that 50cc is the minimum threshold, and larger-displacement bikes offer better handling. Remember to bring your vehicle license and check your bike's condition.

[StJaxson]

Don't underestimate the technical aspects of motorcycle displacement on highways. Engines below 50cc have limited power, making them prone to overheating at high speeds and resulting in longer braking distances. I understand that larger displacements like 150cc bikes can deliver sufficient torque and better withstand wind resistance. Technical standards require displacements over 50cc to match safe highway speeds. Choosing a cruiser with 200cc or above offers superior performance and higher engine reliability.