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Maine adopts test for motorcycle sound

June 14, 2011
Filed under Features

Maine has adopted a simple yet reliable testing procedure that allows motorcyclists to prove their bikes don’t violate Maine’s motor vehicle sound law, the American Motorcyclist Association reports.

Under a new law that went into effect on May 26, motorcyclists ticketed for excessive sound emitting from their motorcycle exhausts can go to a certified inspection station for sound testing.

There, the exhaust system would be tested using the Society of Automotive Engineers J2825 stationary sound testing procedure – “Measurement of Exhaust Sound Pressure Levels of Stationary On-Highway Motorcycles” – which the SAE developed and adopted with support from the Motorcycle Industry Council in May 2009.

Under the SAE J2825 standard, which the AMA has endorsed, decibel limits range from 92 dBA at idle for all motorcycles, to 100 dBA at certain RPMs for various motorcycles, depending on the type of engine. If a motorcycle meets these limits during the certified testing, then it is evidence that the motorcycle doesn’t violate the state’s sound law.

“This new law is good news for responsible motorcyclists who ride in Maine because it provides an objective way to prove that a motorcycle doesn’t violate the state’s sound law, rather than relying on subjective judgments,” said Imre Szauter, AMA government affairs manager. “We applaud the state of Maine – the first in the nation – for adopting the SAE J2825 standard.”

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