How many decibels is a Harley Davidson motorcycle?

80 decibels
A Harley out of the factory is 80 decibels. A Harley with straight pipes (no muffler) gives off 100 decibels, the same as a car horn at three feet according Purdue University. By comparison, an idling car emits 35-to-45 decibels and about 70 decibles at freeway speeds. But remember the decibel stem is logarithmic.

Are all Harley Davidson motorcycles loud?

Undoubtedly, Harley-Davidson motorcycles are some of the loudest in the market. The sound level of the average Harley is around 70 decibels to 80 decibels. Factory-produced Harleys are loud, yes, but not louder than is permitted under the law. Federal law stipulates an 80-decibel limit for all motorcycles.

What is the decibel level of the noise from a motorcycle?

Vehicle	Highway Operation, soft site,* 35 mph or less	Stationary Operation, hard site
Motorcycles	78 dB	80 dB
Passenger Cars, less than 10,000 pounds	72 dB	74 dB
Buses	83 dB	85 dB
Vehicles more than 10,000 pounds	86 dB	88 dB

How does Harley get its sound?

Harley claims the “potato” sound stems from its traditional engine configuration, a V-twin with a 45-degree angle between the cylinders and a single crankshaft pin that holds the two pistons. The spark plugs fire at uneven intervals, contributing to the cadence Harley describes as “pop, pop, pause.”

What does 80 decibels sound like?

Topic Overview

Noise	Average decibels (dB)
Normal conversation, background music	60
Office noise, inside car at 60 mph	70
Vacuum cleaner, average radio	75
Heavy traffic, window air conditioner, noisy restaurant, power lawn mower	80–89 (sounds above 85 dB are harmful)

Is 80 dB too loud?

But any sound that is loud enough and lasts long enough can damage hearing and lead to hearing loss. A sound’s loudness is measured in decibels (dB)….Topic Overview.

Noise	Average decibels (dB)
Heavy traffic, window air conditioner, noisy restaurant, power lawn mower	80–89 (sounds above 85 dB are harmful)

Is 80 dB safe?

The World Health Organization recommends a total of 40 hours of weekly exposure to volume levels no higher than 80 dB for adults and 75 dB for children on personal listening devices. Don’t be afraid to ask others to turn down the volume of their devices if you can hear them.