Motorcycles were the most popular means of transportation in the past, and until now, many people still like to use them. Compared with cars, they are much cheaper, very flexible and rarely need major maintenance; Compared with electric vehicles, it has stronger power and faster speed, and there is no trouble of battery maintenance. The existence of these advantages makes motorcycles still recognized by the market.

 

In fact, motorcycles are also motor vehicles. Their basic structure can be compared with that of automobiles, because motorcycles also consume fuel, have cylinders and exhaust pipes. Moreover, motorcycles also have different displacement. The larger the displacement, the better its performance will be and the price will be more expensive. Many people have a certain understanding of motorcycles, so they must have the impression that when motorcycles are driving, the sound is louder than that of cars. In particular, some motorcycles can hear the sound of exhaust pipes two or three hundred meters away. Why? The understanding person revealed the reason.

 

Intuitively speaking, the sound of the motorcycle exhaust pipe is loud, which will be considered to be more powerful, but in fact, it is not completely so. The power of the car is much greater than that of the motorcycle, but it is basically silent or the sound is very low. The sound of motorcycle is louder than that of automobile, which mainly depends on two points, the number of cylinders and the design of exhaust pipe.

 

At present, motorcycles have single cylinder, double cylinder and four cylinder. The greater the displacement, the more cylinders. Relatively speaking, the sound of single cylinder is the largest, because when a piston runs back and forth, the power output of the engine to the motorcycle is obviously different at different time points in the whole cycle. If the number of cylinders is large or even, Because the difference in the running state of each cylinder will balance the power output and make the car run more smoothly, the vibration caused by exhaust will not produce a lot of sound.

 

Now there are great differences in the exhaust pipes of motorcycles, which will also lead to obvious differences in sound size, such as the differences in mufflers used and the structure of exhaust pipes. The exhaust pipe of motorcycle is divided into direct exhaust and back pressure. At present, most motorcycles use back pressure, because its back pressure structure has the function of pressurization, which can promote more sufficient combustion and reduce exhaust emissions. The acceleration in the start-up stage will be better, and the noise can be reduced. If it is directly discharged, it needs to be refitted by itself and reported to the vehicle management office, otherwise it belongs to private refitting, However, the rear section of the motorcycle in a straight row accelerates very well, so the car is in a straight row, and the sound becomes very loud.

 

Of course, as for motorcycles for daily use, the speed requirements are not very high. The maximum speed of most motorcycles can reach a speed of more than 120 kilometers per hour, but generally, they only travel at a speed of about 30-60 kilometers, so it is not necessary to refit the exhaust pipe. However, if the exhaust pipe of motorcycles is damaged, it is necessary to replace it in time.