Brake light switch set screws (rear)
Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
Thanks to Bruce Giller and Csaba Descardes for sharing this information on the Yahoo! Loopframe_Guzzi news group.
The size of the set screws for the rear brake light switch is 3 mm × 0.5 mm × 10 mm long.