Yes, Horn trigger wire connects to earth via the Horn Button

With two-wire Horn Button:
* earth wire
* Horn trigger wire

With single-wire Horn Button
* earthed via the screws/fasteners
* Horn trigger wire
Connect the Horn Button wire to the un-earthed hub wire



Works Bell hubs will have one to five wires, depending on the Works Bell model. The extra wires are for fancier Steering Wheels

The steering wheel Hub connects to the Horn trigger via the spring-loaded contact riding on the bottom of the hub

Attach file:

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  Works Bell hub bottom side.jpg (97.88 KB)


  Horn Contact 23134.jpg (63.38 KB)