One of the characteristics of a finely built bicycle is complete integration, bells not withstanding. Constructeurs would often drill and tap their stems to achieve this goal. This Spacer Bell Mount is the next best thing.
This clever mount sits within your headset's stack and is tapped to work with VO's Temple bell or Japanese style bells.
Hardware is included but the bell is not, the spacer bell mount is 10mm thick. Please note that if you have an older bike with little room under the headset nut, then get a Retro Mount instead.