Knog Oi BikeBell
OI Bike Bell
The Small Oi fits 22.2mm bars e.g Mountain bike (near the grips), BMX & some old commuters.
Please make sure you know where on your handlebar you are going to place the bell (grips or stem) before you order as you may need a different sized bell.
If you don't know which sized bell you need, then check out this bell mounting video for further help or this how to measure your handlebar guide