Originally Posted by
FrontRanger
The Spurcycle bell is the finest I've used. Really expensive, but it may just be the perfect bell.
that is really the only bell worth considering. its the only one pedestrians react to in my experience.
If you don't want to spend the $$$ on that, simply yell "on your left" Other bells tend to be ignored.
The only fool proof bike bell I have ever found is loud and squeeky brakes. 100% of the people hear and react to this auditory warning.