Targeting bike with loud exhausts

[MSTRS:Me]

That assumes that you are out riding. It is a WOF time that things may come to a brickwall.
But did you miss my double entendre? Refer your siggy for a clue...

[Ixion]

And then JUST when you thought you finally understood it : today they ahve released the draft of NEW regulations, to come into force May next year, which reduce the limits still further . (No, not the 'new' regulations, these are the NEWER new regulations. ) Fortunately they seem mainly focused on cages.

The new proposals are here

As always, BRONZ will be seeking the opinion of the biker community and making submissions accordingly.

[Toaster]

Howzit all, I don't know if there are many Boulevards M1800R's down your way, but I've just removed my baffles from the stock pipes as I do not think that the aftermarket Cobra's do anything for the bike, except make the bike look crap. The sound now is not intrusive, unless I REALLY twist the throttle, but a lovely DEEP rumble...something like a thunder storm coming down the road behind those sleepy cagers. It most certailny wakes them up, but so far, the neighbours have not yet complained. Anyone else with a Boullie??

DF

Oh yes! and I will post updated pics of the modified bike soon.

[Toaster]

And then JUST when you thought you finally understood it : today they ahve released the draft of NEW regulations, to come into force May next year, which reduce the limits still further . (No, not the 'new' regulations, these are the NEWER new regulations. ) Fortunately they seem mainly focused on cages.

The new proposals are here

As always, BRONZ will be seeking the opinion of the biker community and making submissions accordingly.

In reading that article I take it our level (i.e. bikes) stays at 100db... correct?

[Toaster]

Stock anything, when you get right down to it.

Silicon bags are a beautiful thing.

[Toaster]

OK got stopped the other day , more to point, the cop wanted to know what the bike it was, he pointed out to me he thought the bike was to load, so a little warning to me keep the revs low , bloody cop wanted a ride.... like shit, you drop it you own it.

I presume you mean the cop wanted to ride the bike?

My pipes are waaaay louder than before the crash dammit. oh well......

[bmz2]

I presume you mean the cop wanted to ride the bike?

My pipes are waaaay louder than before the crash dammit. oh well......

I've told you before . The computer and i have a beautiful relationship. i will be voting for more porn on INTERNET

[Toaster]

I've told you before . The computer and i have a beautiful relationship. i will be voting for more porn on INTERNET

Well, there are only so many women I can do on camera in a day mate.... the pay is good though.

[bmz2]

Well, there are only so many women I can do on camera in a day mate.... the pay is good though.

hmm ,is that why my credit card was maxed out

[MSTRS:Me]

In reading that article I take it our level (i.e. bikes) stays at 100db... correct?

Yes. For a stationary test. It introduces a new noise standard...the moving test with lower dB level than the static one.

[SilverGrin]

Talking with a mate today has an '03 750 Honda Shadow and was going for a warrant and got told to get his pipes certified, as a decibel reading came back as 104 db.

Problem is, they are stock standard pipes.

Apparently they made him rev up to 3000rpm, and snap off the throttle.
He said he was told it was the deceleration popping that was over the limit.

As of July 1st this year, there will be literally thousands of bikes illegally on the road.

[twotyred]

Talking with a mate today has an '03 750 Honda Shadow and was going for a warrant and got told to get his pipes certified, as a decibel reading came back as 104 db.

Problem is, they are stock standard pipes.

Apparently they made him rev up to 3000rpm, and snap off the throttle.
He said he was told it was the deceleration popping that was over the limit.

As of July 1st this year, there will be literally thousands of bikes illegally on the road.

welcome to the Global Fascist State of New Zealand...

[Gremlin]

Apparently they made him rev up to 3000rpm, and snap off the throttle. He said he was told it was the deceleration popping that was over the limit.

Trying to remember if those sort of noise spikes are illegal.... I believe they may be, but I think there is some sort of exclusion as to what warrants a void sound etc. If it is not counted, then the result must be excluded. iirc, you have to have multiple tests, and they must be very similar results.

Also may pay to check that they had their device set correctly, as the rules are very specific as to how the device must measure sound.

[honda929]

Time to get out the stock pipes for a warrant then.

[Ixion]

Trying to remember if those sort of noise spikes are illegal.... I believe they may be, but I think there is some sort of exclusion as to what warrants a void sound etc. If it is not counted, then the result must be excluded. iirc, you have to have multiple tests, and they must be very similar results.

Also may pay to check that they had their device set correctly, as the rules are very specific as to how the device must measure sound.

2.8(13)
The result of an exhaust noise emission test of a low volume vehicle must be calculated from the average of three separate and consecutive measurements, each of which must be within 2 dBA of each other.
2.8(14)
The final decibel figure established for a low volume vehicle after an exhaust noise emission test, and application of any applicable factoring specified in 2.9, must be rounded to the nearest whole dBA value.
...
2.8(15)
An unusual or unrelated noise spike or peak that occurs when carrying out an exhaust noise emission sound level test on a low volume vehicle must not be taken into account as part of the test results, in which case the test must be repeated until a satisfactory result is achieved.

And, just for repetition

1.1(2)
This low volume vehicle standard does not apply to:
(a) powered bicycles of Class AB; or
(b) a vehicle that is not powered by an internal combustion engine; or
(c) a production vehicle that retains the vehicle manufacturer’s original equipment exhaust system in unmodified condition; or
(d) a vehicle that has been referred for objective exhaust noise emission testing solely on the basis of exhaust leaks or an exhaust system that is in poor condition; or
(e) those vehicles specified in section 4.[irrelevant]

So, as I have said before, a bike with a good condition STANDARD OEM exhaust cannot be pinged by the new rules. And cannot even legally be tested.


The rulez is here