Guardian Bell, Gremlin bell, Angel Bell.

They go by many names but the meaning and protection they bring to your loved one is universal.
In order for the charm to work, the bell must be given to a rider by a loved one.

The bell's power is manifested through this good gesture when one who cares about you gives it as a gift to protect you from those pesky road gremlins.

Keep it clean.
Hang on the lowest part of the frame.

Stay safe fellow riders.