NOTE: I purchased one of these in Jun 2017. Don’t waste your money as it is a piece of junk! They advertise it as being loud, but I can barely hear it sitting right next to it. And it comes apart all too easily and readily. One good bump and what few parts there are would be all over the road. I got it for half price. They are no doubt selling them for half price trying to unload them on those who don’t know any better.
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What do you call a bicycle bell that doesn’t look like a bell? That’s probably a loaded question, but let’s go with “Oi” since that is what I am writing about. I looked up the word Oi to see what, if any, is the meaning … “interjection. used to express surprise, pain, grief, worry, etc.” Well, I guess ringing a bicycle bell is expressing surprise. 🙂
I like these! They definitely don’t look like a traditional bicycle bell, yet they do sound much like one.
Here is a more technical video about this new product:
Yep, the Knog Oi Bell … It gets my vote. I just hope they don’t ring when hitting bumps like the conventional bike bells do. That’s why I have removed mine and gave up on them. I don’t like “dinging” as I ride along … not unless I instigate it. 🙂
As to the use of bike bells I have noticed that most of them are barely audible as bicyclists come up behind me. Hmmm, I wonder how this one will do. I hope I am surprised.
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Tadpole Rider 
As to the decibel level I have found most bells are not all that loud. I have also found that the volume level of bells is not accurately captured accurately in videos. I have a ding-dong bell which is extremely loud, but when i video taped ringing it just two feet away from the camera the volume level of the bell was surprisingly low in the video. Now I am not taking a stand in defense of the Oi bell as to its decibel level (I can’t as I have never seen one personally) I would guess that like a conventional bicycle bell it sounds weak in videos.
A more accurate definition of Oi would be the North American equivalent of HEY! Since the designers sound either Australian or New Zealanders, I am thinking that Oi is used in their vocabulary too. I really like the simplistic design but feel that the decibel level is not where it should be.
I generally hate bike bells and have been running without one after the last one failed. This looks great, thanks for the tip.