Mechanical siren kit, rear wheel. 36-57

Early style reproduction mechanical siren. Aluminum aero cover. Foot pedal operated by pushing the siren driveshaft to the tire. Sounds similar to the early warning air-raid attack sirens in World War II. If you've never heard one of these before, you're in for a howlin' surprise! Siren comes complete as shown. Weight 5.82kg. OEM replacement reference 11225-36.