How To Measure Motorcycle Exhaust DB, Standard Rules For Noise According To Law

How to measure the exhaust DB (Freepic)

YOGYAKARTA - The use of a loud-noise racing exhaust can be ticketed for violating the provisions. There is a law that regulates the sound limit generated by the exhaust. Given this rule, modified fans need to know how to measure DB exhaust racing.

Brong exhaust raids are often carried out by the police to curb the use of knalots that violate the rules. In addition to violating the rules, the sound of the racing exhaust or brong is quite disturbing other road users.

So that you can drive comfortably and smoothly without being fined, you should comply with the rules that have been made. So what are the rules for using exhaust on the motorbike and how to calculate exhaust DB?

Based on Law Number 22 of 2009 concerning Road Traffic and Transportation (UU LLAJ) Article 285, it is stated that road-worthy exhaust is one of the technical requirements for vehicles to be driven on the road.

Article 285 Paragraph (1) Anyone who drives a motorcycle on a road that does not meet the technical and roadworthy requirements which include rearview mirrors, horns, headlights, brake lights, directional lights, light-guiding devices, speed gauges, exhausts, and tire flow depth as referred to in Article 106 paragraph (3) in conjunction with Article 48 paragraph (2) and paragraph (3) shall be punished with imprisonment for a maximum of 1 (one) month or a maximum fine of Rp. 250,000.00 (two hundred and fifty thousand rupiah).

Referring to this article, police officers have the right to ticket motorcyclists who use exhausts that do not meet the roadworthiness requirements. In addition, every vehicle that has been modified also needs to report in order to get approval for road legality.

The standard level of exhaust noise has been stipulated in the Regulation of the Minister of Environment and Forestry Number P.56 of 2019 concerning the Baku of Noise in New Type Motor Vehicles and Motor Vehicles that are being produced in Category M, Category N, and Category L.

In this provision, there is a description of the DB level for motorbikes with a capacity of 80 cc 175 cc, which is a maximum noise of 80 dB. Meanwhile, for motors above 175 cc, the maximum noise level is 83 dB. The police use the reference to measure the noise of the racing exhaust or the exhaust is loud.

How to measure the noise level or two-wheeled vehicle exhaust DB is already in the international convention. This noise measurement is done using a sound level meter or decible (dB) meter. When devising measurements, the engine is in idle or langsam state. So the motor is in an on position, but the gas is not opened.

How to test exhaust noise needs to pay attention to several things. The sound measuring device aka DB meter is placed in a sewer position or 45 degrees from the exhaust. So the position of the mic or end of the DB meter should not be in the direction of the exhaust hole.

The distance between the DB meter and the exhaust tip (minimal) is 45 cm. If the DB is placed closer, the sound will get louder. If in this condition, the motorcycle user himself will be harmed because the results of the DB measurement will be harder than the original noise.

Another important thing that should not be forgotten when measuring the exhaust DB is the atmosphere of the place. The noise test must be carried out in a quiet place and not disturbed by the surrounding noise ole.

That's how to measure a motorcycle exhaust DB that modification lovers need to understand. So when you want to replace your exhaust with a new one, you should pay attention to the standard noise level rules. Also read bad effects using a racing exhaust.

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