Straight pipes for a chopper?

[barty5]

Wanting to know what is the deal with straight pipes back in NZ been living in US for a while and due to move back to NZ this time next year so with chopper with straight pipes be able to be registered as thats what it came with when built ???

[Paul in NZ]

I doubt it....

[Akzle]

like dump pipes? unlikely. inspection will fail on dB. i don't know what the actual limit is, but anything over about 110 causes hearign damage, so probably about that.

[barty5]

like dump pipes? unlikely. inspection will fail on dB. i don't know what the actual limit is, but anything over about 110 causes hearign damage, so probably about that.

Yeah pretty much dump pipe as use to be on the like of orange county choppers. I thinking if it was factory made as such ie bike being made that way from new ?? There use to be probably still are some some what loud bikes back in NZ. Might have to find some sort of muffler to get compliance first I guess unless someone knows different.

[HenryDorsetCase]

http://www.nzta.govt.nz/resources/ru...t-2007-qa.html

Have a wee look thru this.

you will see it specifies the procedure and the limit, which is 100dBA for moor'sickles.



I hate loud pipes on bikes personally, but so does the gubblemunt it seems

[bogan]

http://www.nzta.govt.nz/resources/ru...t-2007-qa.html

Have a wee look thru this.

you will see it specifies the procedure and the limit, which is 100dBA for moor'sickles.



I hate loud pipes on bikes personally, but so does the gubblemunt it seems

Can confirm, VTNZ do test for this. Not to the spec'd level of testing, just wave a decibelometer round the back end while giving it some revs.

[BIG DOUG]

Just fit up some stock pipes to get it complied/vinned then fit your old pipes,also does it have indicators if not you will need those + a whole of of other useless shit you will have to do to it,Why not post a pic.

[jellywrestler]

Just fit up some stock pipes to get it complied/vinned then fit your old pipes,also does it have indicators if not you will need those + a whole of of other useless shit you will have to do to it,Why not post a pic.

they take photos now when certifying bikes and if you change they'll know. also they often note if it's a limited/modified vehicle on the compliance plate things like pipe brands. i'm going through that process myself. There's some shit to deal with like number plate must be within 15 degrees of vertical etc etc
don't forget to have the correct headlight for our side of the road too.

[AllanB]

I hate loud pipes on bikes personally, but so does the gubblemunt it seems

Did you not own the loudest Triumph Scrambler in Christchurch



It will fail with open pipes. Rightly so too - sound like crap and just piss everyone off. I like a bit of pipe (mmm Yoshis) but straight open ones with no baffling

[cs363]

I like a bit of pipe

Typical Honda rider!









Sorry, but you did leave that door wide open!

[skippa1]

Wanting to know what is the deal with straight pipes back in NZ been living in US for a while and due to move back to NZ this time next year so with chopper with straight pipes be able to be registered as thats what it came with when built ???

Just fit up some stock pipes to get it complied/vinned then fit your old pipes,also does it have indicators if not you will need those + a whole of of other useless shit you will have to do to it,Why not post a pic.

^^^^^this....don't listen to the nay sayers, loud pipes save lives.......

i have had some "hell" loud pipes, never been an issue

[Motu]

and the limit, which is 100dBA for moor'sickles.

97db for the WoF. Some engines are surprisingly quiet at their testing rpm - eg, 2 valve twins are tested at 2,500rpm, a Harley is pretty quiet there.

[BIG DOUG]

Only if the idiot knows how to do a decibal test,like at the local vtnz they do it in a big tin shed with a meter shoved up the pipe "OH MY GOD THATS TO LOUD" explained to him that it is 1mtr back from muffler,1 mtr to the side and 500mm of the ground is where the meter sits and outside in an open space and spyda we have had a few bikes vinned and never have they wrote the brand of pipes down.

[HenryDorsetCase]

Did you not own the loudest Triumph Scrambler in Christchurch


:

..............what? can't hear you. speak up, man!

:blush: yeah it was pretty loud. Maybe what I dislike is OTHER people's loud bikes....?

[HenryDorsetCase]

Only if the idiot knows how to do a decibal test,like at the local vtnz they do it in a big tin shed with a meter shoved up the pipe "OH MY GOD THATS TO LOUD" explained to him that it is 1mtr back from muffler,1 mtr to the side and 500mm of the ground is where the meter sits and outside in an open space and spyda we have had a few bikes vinned and never have they wrote the brand of pipes down.

Thats good info, thanks!