New SAE Motorcycle Exhaust Sound Test Standard

Nickds7 · July 11th, 2009, 06:06 PM

Apparently there is a new test standard for the official way to measure you're motorcycle exhaust.. not sure if it is what everybody currently uses, but this is what the cops will be using.

Quote:

The SAE J2825 on-highway motorcycle sound test procedure is similar to the one used for the SAE J1287 off-highway motorcycle test. The street bike measurement requires holding a calibrated sound meter at a 45-degree angle 20 inches from the exhaust pipe of a running engine.

The SAE J2825 standard, prepared by the SAE Motorcycle Technical Steering Committee, recommends a decibel limit of 92 dBA at idle for all machines; or, using the Set RPM or Swept RPM Test, 100 dBA for three- or four-cylinder machines, and 96 dBA for bikes with fewer than three or more than four cylinders.

(Source: webBikeWorld)

Alex · July 11th, 2009, 07:53 PM

It's good that the SAE has developed a standard test, but by no means does this ensure that it is the test that all (or even any) jurisdictions will choose to use.

ASecretNinja · July 11th, 2009, 09:48 PM

92dBA at idle would be pretty damn loud. I'd have to be idling at like 5kRPM lol. The sweeping test makes me a little nervous though, my Muzzy is loudzor.

July 11th, 2009, 07:53 PM	#2
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	It's good that the SAE has developed a standard test, but by no means does this ensure that it is the test that all (or even any) jurisdictions will choose to use. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[webbikeworld.com] - New SAE Motorcycle Sound Test Standard Announced	Ninjette Newsbot	Motorcycling News	0	July 8th, 2009 08:10 PM
[roadracingworld.com] - Reader Feedback On Proposed SAE Motorcycle Exhaust Sound Leve	Ninjette Newsbot	Motorcycling News	0	June 25th, 2009 05:31 PM
[roadracingworld.com] - More On That New SAE Motorcycle Exhaust Sound Level Test Stan	Ninjette Newsbot	Motorcycling News	0	June 24th, 2009 08:00 PM
[topix.net] - SAE Releases Motorcycle Sound Test	Ninjette Newsbot	Motorcycling News	0	June 22nd, 2009 09:00 AM
[roadracingworld.com] - SAE Produces New Motorcycle Exhaust Sound Level Test Standard	Ninjette Newsbot	Motorcycling News	0	June 19th, 2009 11:13 AM

July 11th, 2009, 09:48 PM	#3
ASecretNinja ATGATT Squid Killer Name: Chad Location: So. Cal Join Date: May 2009 Motorcycle(s): '06 CBR600 Posts: 189	92dBA at idle would be pretty damn loud. I'd have to be idling at like 5kRPM lol. The sweeping test makes me a little nervous though, my Muzzy is loudzor.