SAE Standards

SAE Standards

SAE J331:2020 pdf download

SAE J331:2020 pdf download

This recommended practice establishes a method for measuring total motorcycle sound pressure levels under full throttle acceleration and closed throtle deceleration. Factors which contribute to total motorcycle sound include those from the exhaust, intake, mechanical components, tires/road interface and others. SAE J47 is recommended for measuring the maximum total motoreycle sound pressure level under wide

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