Would this be too much to use as a bike bell?
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Would this be too much to use as a bike bell?
Ive found it, its a sure guard personal siren alarm, 140+ dB or thats what they say on their website, but anyway its really freaking loud, go deaf in 10 seconds sort of loud. I think its a good dog deterrent at least, because its unlike a car alarm, this is really really high toned thingie, its like it sirens inside of your brain, almost ultrasonic stuff.
Give me an idea how to integrate it onto the bike.
https://www.c-p-p.co.uk/product/asp/P...06/af/page.htm
Give me an idea how to integrate it onto the bike.
https://www.c-p-p.co.uk/product/asp/P...06/af/page.htm
Last edited by goodchap; 05-16-11 at 11:54 AM.
#2
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I think there's a law against having a "siren" on a bike.
#3
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A bell is much more civilized.. Air Zounds ,
is a plastic soda bottle you pump up with your tire pump.
is a modest escalation ..
There is someone, Here, that fitted a couple horns
that he got of the yard scrapping of a couple Ships,
and fitted them to the top of his truck camper shell
has a big air compressor in the pickup truck bed.
buy a Mobile phone handle bar mount.
is a plastic soda bottle you pump up with your tire pump.
is a modest escalation ..
There is someone, Here, that fitted a couple horns
that he got of the yard scrapping of a couple Ships,
and fitted them to the top of his truck camper shell
has a big air compressor in the pickup truck bed.
give me an idea how to integrate it onto the bike.
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The laws I know of regarding vehicle lights, sirens, and PA systems mostly address the on road use of these items, not their presence/installation (but I have encountered regional ordinance against having them on a vehicle), and are specifically directed a motor vehicles (not that I'd care to argue that with a cop or a judge).
If you can legally carry it on your person the law probably won't prevent riding with it on the bike.
Using it in traffic would be a very different issue, and would generally be a very bad idea.
Using it to scare off animals on trails, paths, and empty residential streets is probably fine.
You may want to check out some of the bicycle theft alarms that are very similar to this.
If you can legally carry it on your person the law probably won't prevent riding with it on the bike.
Using it in traffic would be a very different issue, and would generally be a very bad idea.
Using it to scare off animals on trails, paths, and empty residential streets is probably fine.
You may want to check out some of the bicycle theft alarms that are very similar to this.
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As intended fine. As a bell, Is it your intention to scare the daylights out of another rider?
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Ive found it, its a sure guard personal siren alarm, 140+ dB or thats what they say on their website, but anyway its really freaking loud, go deaf in 10 seconds sort of loud. I think its a good dog deterrent at least, because its unlike a car alarm, this is really really high toned thingie, its like it sirens inside of your brain, almost ultrasonic stuff.
Give me an idea how to integrate it onto the bike.
https://www.c-p-p.co.uk/product/asp/P...06/af/page.htm
Give me an idea how to integrate it onto the bike.
https://www.c-p-p.co.uk/product/asp/P...06/af/page.htm
Ya, that would be nice plan!
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My preferred bicycle brand is.......WORKSMAN CYCLES
I dislike clipless pedals on any city bike since I feel they are unsafe.
Originally Posted by krazygluon
Steel: nearly a thousand years of metallurgical development
Aluminum: barely a hundred, which one would you rather have under your butt at 30mph?
My preferred bicycle brand is.......WORKSMAN CYCLES
I dislike clipless pedals on any city bike since I feel they are unsafe.
Originally Posted by krazygluon
Steel: nearly a thousand years of metallurgical development
Aluminum: barely a hundred, which one would you rather have under your butt at 30mph?
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140 db is stupid loud and not at all bell-like.
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Would you explain for me when and how you visualize yourself using it?
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it may be a bit loud but probably good for if you travel on busy city streets. the average car horn is about 110 db so what a hole 30 db? the one horn i have for my truck i am pretty sure is over 140 db and it tend to get people to jump and it is only 6 volt.
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Doubt that it's 140db. That's a sound level that will cause permanent hearing damage. The decibel scale is a logarithmic scale, so a 30 db jump is major.
If anyone sounded that thing at me, I'd push him off his bike and kick the offender dead center in the nuts.
If anyone sounded that thing at me, I'd push him off his bike and kick the offender dead center in the nuts.
#11
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I looked it up 140dB is louder than a jet engine...it would certainly get the attention of folks that are running you off the road, that's for damn skippy.
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The only reason I could find something like this useful is if it repelled dogs, the Airzound I have tried was only moderately sucessful
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Actually its sort of big to put it on the handlebars, so changed my mind. I`ll think of a way to attach it very securely to the frame, and use it as a bike alarm. You can fire it in two ways: either depressing its test button which will make it shut up as soon as its released, or by pulling out a pin, in which case it will sound the alarm til the pin is replaced. What I was thinking...run a discreet string along the frame, from the pin hooked to the rear wheel, which as soon as it turnes more than 1/2 rotation, will pull the pin out. And since the siren will be inside of a very strong casing attached to the frame, there will be no way to make it shut up* or to rip out and stump on it. Of course i`ll have to be very careful to unhook the string from the wheel everytime i `set` the alarm, otherwise lol goodsamaritans everywhere. (*there will be just a small hole in the casing to run the string from the pin to the wheel, with a gap between the siren and the casing [the gap being bigger than the lenght of the pin], so even if the pin is completely pulled out from the casing, it wont be possible to replace the pin without taking the casing apart).
What do you think.
What do you think.
Last edited by goodchap; 05-16-11 at 11:45 PM.
#14
Bicycle Repair Man !!!
Agree with Merkel that if someone used something like that anywhere near me a boot to the nuts would be defensible in a court of law as it would be self defense.
My thought... buy a good quality lock and skip the siren.
My thought... buy a good quality lock and skip the siren.
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Bicycle Repair Man !!!
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I already said I wont be using it as a horn, but an alarm. I want to know if someone is stealing my sht. I just can`t see what the problem is.
They also make bicycle alarms with I quote "Combined physical security with 120dB ear piercing alarm and bright red flashing light."
There you go https://www.c-p-p.co.uk/product/asp/P...26/af/page.htm
I guess im legal.
They also make bicycle alarms with I quote "Combined physical security with 120dB ear piercing alarm and bright red flashing light."
There you go https://www.c-p-p.co.uk/product/asp/P...26/af/page.htm
I guess im legal.
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+1 It might be if you pressed it right to your ear (or dB meter) but probably not even close at arm's length. My daughter has one that is rated the same and it doesn't sound near as loud as a standard smoke alarm which is rated at 85dB@10'. Note the distance in this one. If it's not included in the dB rating, it's either directly at the source, or a marketing number. Neither of which amount to a hill of beans. Even if you do get it to use as you said, you'll probably be disappointed with the volume.
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the one horn i have for my truck i am pretty sure is over 140 db and it tend to get people to jump and it is only 6 volt.
1) 140dB is at the pain threshold
2) Even assuming 110dB/1W efficiency it'd take 1000W or 166A at 6V. Your fuses are generally 5-20A.
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Actually I was talking about it at work, and someone who also used to work as a security guard in the weekends (they had something similar but smaller and not as loud as mine) admitted he pulled the pin on one of those and threw it inside a bus that was just closing its doors ready to move, loaded with passengers. He was standing outside. Imagine that. He said that the word `panic` can not describe what was happening inside. Lol.
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Actually I was talking about it at work, and someone who also used to work as a security guard in the weekends (they had something similar but smaller and not as loud as mine) admitted he pulled the pin on one of those and threw it inside a bus that was just closing its doors ready to move, loaded with passengers. He was standing outside. Imagine that. He said that the word `panic` can not describe what was happening inside. Lol.