CRANE SUZUE! That's it. I've been to many bike shops - Portland, Oregon is extremely "bikey" with something like 72 bike shops. I ding a lot of bells because I like them, and always listening for a lovely tone.

Crane bells are the most lovely, long resonating bells. The Suzue is a striker model and very "assertive" sounding. The Crane "Karen" bell has the striker on a spring. A little gentler sounding AND it self-dings when you go over bumps, etc.

Crane, Crane, Crane. Did I mention Crane?