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How loud is a motorcycle

How many decibels is a motorcycle?

The maximum allowable sound level is 82 decibels for any motorcycle traveling at any speed. This is to be measured at a distance of 50 feet from the center of the lane in which the motorcycle is traveling.

How loud is too loud for a motorcycle?

A noise limit of 88 decibels applies to motorcycles manufactured after 1969 and before 1973; 86 decibels applies to motorcycles manufactured after 1972 and before 1975; 83 decibels applies to motorcycles manufactured after 1974 and before 1986; 80 decibels applies to motorcycles manufactured after 1985.

Do motorcycles have to be so loud?

Contrary to popular belief, motorcycles are not manufactured to be loud. … They are designed to increase the exhaust noise of motorcycles and their manufactures openly admit they are intended “for use on closed courses only.” Those types of exhaust systems are not legal for use on highway motorcycles.

How loud is a Harley Davidson in dB?

80 decibels

Why are bikers so loud?

Motorcycles are so loud because of the size of the muffler most of them have, the length of the exhaust pipes and the lack of residence time the air and exhaust have to slow down, and because the engine is open to air and atmosphere with no engine compartment encasing and stifling the sound.

Why is 194 dB the loudest sound possible?

Strictly speaking, the loudest possible sound in air, is 194 dB. The “loudness” of the sound is dictated by how large the amplitude of the waves is compared to ambient air pressure. … Essentially, at 194 dB, the waves are creating a complete vacuum between themselves.

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Why Harleys are so loud?

Harley’s are no louder than any other big bike with an illegal exhaust modification. Harleys are quiet from the factory, they have to be, it’s the law, it’s the owners that make them loud. … Harleys are quiet from the factory, they have to be, it’s the law, it’s the owners that make them loud.

Can motorcycles be quiet?

Motorcycles are quiet. In the US, all motorcycles sold must meet federal noise standards, just as cars have to meet their federal noise standards. … Motorcycles are quiet. In the US, all motorcycles sold must meet federal noise standards, just as cars have to meet their federal noise standards.

What does 110 dB sound like?

Comparative Examples of Noise LevelsNoise SourceDecibel LevelDecibel EffectSteel mill, auto horn at 1 meter. Turbo-fan aircraft at takeoff power at 200 ft (118 dB). Riveting machine (110 dB); live rock music (108 – 114 dB).110Average human pain threshold. 16 times as loud as 70 dB.

Are motorcycles louder than cars?

The power band of a motorcycle engine is often at a higher RPM than that of a car engine, so the motorcycle engine will run consistently faster, and therefore louder. … Cars can have much longer, larger mufflers on their exhaust systems because they are much larger vehicles.

Why do motorcyclists go so fast?

One of the reasons could be that motorcycle engines are usually at higher RPMs (revolutions) than the cars around them, and do have noisier exhausts that make them sound like they’re in a hurry. Sure they may be faster, but they give the feeling that they’re also much faster than say a car passing us at the same speed.

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What is the quietest motorcycle?

The larger touring motorcycles seem to be the quietest. Honda Goldwing, ST1300, BMWs, the Kawasaki concours. I’ve ridden the ST1300 and there’s hardly any noise with a helmet on. Same with the Honda VFR.

How loud is 92 decibels?

Normal conversation is about 60 dB, a lawn mower is about 90 dB, and a loud rock concert is about 120 dB. In general, sounds above 85 are harmful, depending on how long and how often you are exposed to them and whether you wear hearing protection, such as earplugs or earmuffs.

Why are Harleys so expensive?

The main reason Harleys are so expensive is that the company has 40% gross margins and 23% net margins. In other words, most of what you are paying is pocketed in profits. The next reason is that they are assembled in America.

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