Gregory Bender

Sirens supplied by Moto Guzzi

Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models



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Electric sirens

Starting with the second edition of the V700 spare parts catalog, Moto Guzzi supplied a pair of electric sirens (MG# 12743740 and a pair of mounting brackets (MG# 12744240 and MG# 12744245). To the best of my knowledge, these sirens were manufactured by Ercole Marelli SPU and are designated as part number 120. Ercole Marelli was one of the founders of Magneti Marelli (along with Fiat). Given that Magneti Marelli was founded in , I'm confused by why the spare parts catalog identifies the manufacturer as Ercole Marelli rather than Magneti Marelli.

Regardless, these sirens are very rare and I've never seen any in person. The closest I've gotten to these is the photo on page 26 of Greg Field's most excellent book, Moto Guzzi Big Twins.

Friction drive sirens

Moto Guzzi made frames with rear-tire-friction-drive siren mounts for use by police departments. Moto Guzzi did not, however, manufacturer or supply friction drive sirens. Instead, individual police departments mounted a variety of sirens as per their department preferences. Some departments used electric sirens while others used mechanical sirens.