Get one of these. It is a bell that can be turned off and on with the flick of a switch. When you see pedestrians or other riders, flick the bell on, and it jingle-jangles as you ride down the trail, alerting others to your presence. When the coast is clear, flick the bell off and ride in blissful silence. They manufacture three variants of the bell. This is the best version.
From the Manufacturer:
If you ride hard and often, the all new Timber Model Yew! is just what you’ve been asking for. It has the same sweet sound and performance of our existing bells, plus a handful of nifty improvements.
It’s built stronger, and all parts are now completely modular, including the cable and clapper ringer system. If anything wears out or breaks, you can replace it quickly and easily. So ride hard, ride often, crash into stuff; we’ve got ya!
We’ve also added:
-A spring loaded piston to the on/off lever for smoother shifting
-A hinge pin in the bar clamp for easier mounting
-Now fits 35mm bars(includes shims for standard 31.8mm and 22.2mm bars)