California, (home of the Fruits and Nuts) might be cracking down on aftermarket pipes.
http://news.yahoo.com/s/ap/us_motorcycle_noise
http://news.yahoo.com/s/ap/us_motorcycle_noise
New bill in California to limit motorcycle noise
- Thread starter jl551c
- Start date
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There was a law Passed recently in Edmonton Alberta as well.
"Edmonton, Alberta, claims to be the first Canadian city to officially start fining motorcycles for excessive noise levels that exceed 92 decibels while idling or 96 decibels while the engine is revving to benchmarks of 2000 and 5000 rpm. The city council passed the new bylaw amendment that took effect on July 1st, the fine was set at $250.
During the demonstration prior to July 1st, police tested in excess of 100 bikes and found about 15 percent of the motorcycles failed by using a sound meter that was placed 20 inches from the exhaust. Police will be “fine tuning” their ears in order to decide who will be pulled over for a sound test.
" From Motorcycle.com
"Edmonton, Alberta, claims to be the first Canadian city to officially start fining motorcycles for excessive noise levels that exceed 92 decibels while idling or 96 decibels while the engine is revving to benchmarks of 2000 and 5000 rpm. The city council passed the new bylaw amendment that took effect on July 1st, the fine was set at $250.
During the demonstration prior to July 1st, police tested in excess of 100 bikes and found about 15 percent of the motorcycles failed by using a sound meter that was placed 20 inches from the exhaust. Police will be “fine tuning” their ears in order to decide who will be pulled over for a sound test.
" From Motorcycle.com
pur pony
Well-known member
screw CA... thats why i have never been there, never will!!
onelogue
Well-known member
Wow glad i just moved from there!
hey theoctopus, ........ hahah
hey theoctopus, ........ hahah
I'm not originally from CA, and I hear ya, but I've got to say that the Central Coast where I live has some of the best motorcycle roads I've ever seen. Looks like we'll just be cruising a lot more quiet unless the Govenator vetos this bill.
Jardine for sale.....LOL
lokatwhaticando
Well-known member
- Joined
- Mar 6, 2010
- Messages
- 216
Yeah well the wife dosn't want to move and well I have no say in the matter. But I can ride 9 months out of the year, and I'm ok with that. Plus I worked in Washington and I never got to ride only like 3 times in 5 months it sucked never stopped raining. Now thats one state I wont't move to.
upthemaiden
Well-known member
uh oh, people are just gonna have to go back to using their horns The only reason I got a new exhaust on mine was to cover up the obnoxious airbox noise.
My bike is loud, but honestly I do prefer quiet motorcycles. Year riding a (silent)bicycle through the city has taught me that judging traffic patterns is way more valuable that having a screaming motorcycle everywhere I go. Listening to people revving their exhausts all day long outside my office window even makes me dislike motorcycles pretty often, so I completely understand where people who don't even ride are coming from.
I didn't read the article, so I don't know if it was factual based or just motorcycle bashing, but still.
The only reason I got a new exhaust on mine was to cover up the obnoxious airbox noise.My bike is loud, but honestly I do prefer quiet motorcycles. Year riding a (silent)bicycle through the city has taught me that judging traffic patterns is way more valuable that having a screaming motorcycle everywhere I go. Listening to people revving their exhausts all day long outside my office window even makes me dislike motorcycles pretty often, so I completely understand where people who don't even ride are coming from.
I didn't read the article, so I don't know if it was factual based or just motorcycle bashing, but still.
But isn't decibels only have of the equation? Lower frequencies carry over a longer distance, and higher frequencies carry far less....
and for comparison...
"Vacuum cleaner at 10 ft. 70
Passing car at 10 ft. 80
garbage disposal at 3 ft 80
Passing bus or truck at 10 ft. 90
food blender at 3 ft. 90
Passing subway train at 10 ft. 100
gas lawn mower at 3 ft. 100
Night club with band playing 110
Threshold of pain 120
What is difference between dB SPL and dB(A) SPL?
The following is from the Acoustics FAQ. A sound level meter that measures the sound pressure level with a "flat" response will indicate the strength of low frequency sound with the same emphasis as higher frequency sounds. Yet our ear perceives low frequency sound to be of less loudness that higher frequency sound. The eardrum- stapes-circular window system behaves like a mechanical transformer with a finite pass band. In EE parlance, the "3 dB" rollover frequencies are approximately 500 Hz on the low end and 8 kHz on the high end. By using an electronic filter of attenuation equal to that apparently offered by the human ear for sound each frequency (the 40-phon response curve), the sound level meter will now report a numerical value proportional to the human perception of the strength of that sound independent of frequency."
they are going to measure at 3ft?
source: http://trace.wisc.edu/docs/2004-About-dB/
and for comparison...
"Vacuum cleaner at 10 ft. 70
Passing car at 10 ft. 80
garbage disposal at 3 ft 80
Passing bus or truck at 10 ft. 90
food blender at 3 ft. 90
Passing subway train at 10 ft. 100
gas lawn mower at 3 ft. 100
Night club with band playing 110
Threshold of pain 120
What is difference between dB SPL and dB(A) SPL?
The following is from the Acoustics FAQ. A sound level meter that measures the sound pressure level with a "flat" response will indicate the strength of low frequency sound with the same emphasis as higher frequency sounds. Yet our ear perceives low frequency sound to be of less loudness that higher frequency sound. The eardrum- stapes-circular window system behaves like a mechanical transformer with a finite pass band. In EE parlance, the "3 dB" rollover frequencies are approximately 500 Hz on the low end and 8 kHz on the high end. By using an electronic filter of attenuation equal to that apparently offered by the human ear for sound each frequency (the 40-phon response curve), the sound level meter will now report a numerical value proportional to the human perception of the strength of that sound independent of frequency."
they are going to measure at 3ft?
source: http://trace.wisc.edu/docs/2004-About-dB/
