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[Dell boy]

I would be interested if anyone has info on the Db noise readings from the various figments. In the UK the limit of 99 Db seems to be the default if the police ever bother bother to measure. As this Aglines with EU SVA I presume other EU countries are the same and some are getting hot on enforcement. Sorry if its not a relevant question in the US guys

Anyway if anyone has access to a Db meter position it in line with and half a meter from the exhaust take a reading at idle and at half revs
Done mine with V & H straight shot cans and quite baffles -

Idle -104 Db
Half revs - 109 Db

[Breakout]

I cannot give you any results about the DB readings. But I can warn you for the German Police. When it is good weather they are standing at the highway on the first parking spot after the Dutch / German border with their noise measuring gear.
All bikes are being stopped and measured there. And if you are making too much noise what happened to several of my friends they revoke your license papers and you have to trailer your bike home. You only get your papers back if you are showing them your bike with the stock exhaust again.

[Dell boy]

Thanks breakout worth knowing I will avoid that border if I can- I had heard they were getting stupid. A friend got stopped last year and whilst he was OK they were impounding bikes and only release them when they changed the exhaust and they passed their test.

[Dave H]

Mate that is pretty harsh ?
I wonder how many lives loud pipes have taken ? I thought they would have better things to police .
I do get the " social impact " angle when pipes are really obnoxious  , but to impound bikes is a bit over the top heh?

[Ronhend]

I have V&H Big Radius 2 into 1 on my Breakout.
I just checked the db......idle.             85 db
                                     2500 rpm.....93 db


Ron

[Fisherman]

I have V&H Big Radius 2 into 1 on my Breakout.
I just checked the db......idle.             85 db
                                     2500 rpm.....93 db


Ron

Cheers Ronhead looks like i will be getting the BR 2 into 1, as like Dell Boy i am thinking of going to Europe and the old bill are no joke when it comes to loud  pipes on bikes i can tell you 

[Ronhend]

Im not sure how they position the sound meter when they take a reading?
But, just to clarify my readings.
I held the meter in my hand while sitting on the bike.

Ron

[Breakout]

Im not sure how they position the sound meter when they take a reading?
But, just to clarify my readings.
I held the meter in my hand while sitting on the bike.

The sound meter should be 0,5 meter behind and in line with the exhaust

[Fisherman]

Oh dear that does not sound good Breakout  Do you have many problems in the Netherlands with non-standard  pipes?.

[Breakout]

In the Netherlands we have no problems, we are allowed to install whatever exhaust we want, we do not need to have the "E" marks on them as in Germany. The Police does not have a approved dB measuring device standard in their patrol cars so it is not possible for them to prove that you are making too much noise. However if the noise is excessive the can take you to a MOT center to measure.
I have checked yesterday the books about the MAX dB we may produce according to the regulators of the EU.
The legislation below is valid for ALL EU countries. The differend EU countries can put more stringent measurements in place but these are not valid for foreigners visiting these countries with their BIKE (for example IN germany THEY DO NOT ALLOW OTHER THAN EXHAUST WITH THE "E" MARK)
New Motorbikes,
All new Motorbikes are being tested for use on the road and receive an "E" mark, part of this test is a noise measurement.
 The amount of dB's measured are being stamped on a identification plate mounted on the Bike frame,
when a Bike is checked afterwards it may not produce more dB's as mentioned on this plate !!! If they measure a higher noise level as on this plate the BIKE is not conform the Test and the license for the bike will be withdrawn.
You have four weeks to modify your bike in such a way that it conforms to the dB measurement and bring it in for a retest,
if OK you will get your papers back. If your bike is not retested or conform to the noise measurements within this 4 weeks the License is being void and you have to apply for a complete new test and license plate

[Breakout]

I Had not enough space in the last post so here part 2.
For older Bikes who do not have a "E" plate (it did not exist yet) the following dB levels are allowed.
80 cm3 91 dB(A)
125 cm3 92 dB(A)
350 cm3 95 dB(A)
500 cm3 97 dB(A)
750 cm3 100 dB(A)
1000 cm3 103 dB(A)
>1000 cm3 106 dB(A)
For both the new bikes as for the old bikes the following measuring method is used
The dB measuring Mic is placed in a straight line behind the exhaustbetween 20 and 50 cm above the street.
The engine is warm and running idle then the throttle is opened fully until the engine is running 3500 RPM for engined with a max RPM of <5500
and 6500 rpm for engines with a max rpm of > 5500 rpm, then the throttle is fully closed again, this is repeated 3 times the highest measurement is governing

[Fisherman]

Thank you Breakout for explaining how it all works,its the same in England as in the Netherlands,  lets hope they don't introduce this sort of crap on the rest of us  

[Dead_Reckoning]

Im not sure how they position the sound meter when they take a reading?
But, just to clarify my readings.
I held the meter in my hand while sitting on the bike.

The sound meter should be 0,5 meter behind and in line with the exhaust

In the USA some States now have Loud Noise Laws.
The tend to use theAMA approved SAE J2825
How to Perform a SAE J2825 Motorcycle Sound Test

Some US Exhaust MFGs are starting to list some of their pipes with "SAE J2825 Compliant" statements

In New Hampshire you must pass the SAE J2925 Test during the Annual Inspection to get an Inspection Sticker

[Dobeman2000]

Glad I currently don't have any requirements set for muffler noise (knock on wood).  I put on a set of Rush slip ons with 2 inch baffles and they are far louder than the 2 into 1 Vance and Hines I had on my 07 springer.  Thye are louder than I would like, but the price was right.