the Oi from KNOG w/ video

The "Oi" from KNOG 
"Oi" translates to "HEY"

There is a hidden spacer in the packaging to help it fit on smaller bar sizes. Look behind this plastic piece before discarding the package. 

Many states or countries have laws requiring a bell or signaling device on bicycles that ride on the road or with traffic.  The Oi bicycle bell by KNOG is a sleek designed bell. This computer numerical controlled machined bell, size large fits bars 23.8mm  to 31.8mm bars. They do make a small version to fit bars 22.2mm, but that is not the bell I have. The metal part, noise making part of the bell, is suspended by a few springs inside. The bell comes with all necessary tools, a hex key and spacers, if needed, to install it on your handle bars. There are two nicely spaced places on the bottom of the Oi allowing for brake and gear cables to run smoothly along the underside of the bell.  Many states or countries have laws requiring a bell or signaling device on bicycles that ride on the road or with traffic. 

Listen to the tone in the video below.