http://www.adventurersworkshop.com/...L_NAUTILUS_RED&Category_Code=Stebel_Air_Horns
Extra Loud, 139 dB Ear Splitting Air Horns. Tired of the tiny, "tinny" sound coming from your original equipment Beep Horn? Want to make sure people hear you when you Honk at them? Then this is the horn for you. Compact in size, Only 4 1/2" wide x 5 1/2" high x 3 3/4" deep.
Loud enough to convince other drivers that there's a derailed freight train barrelling down on them. Don't press the horn button in the garage, it hurts! At 139dB you can hear it on the other side of town.
Includes a single M8 mounting bolt and nut, as well as a relay for providing a direct, high current attachment to the motorcycle's battery.
The Nautilus compact horn is practical and easy to install using a single bolt fixing.
Specification:
Legality: ECE homologated
Maximum loudness: 139 dB
Type of sound: harmonised twin tone.
Weight: 600g
Metal parts treatment: zinc plated
Trumpet material: ABS plastic.
Size: 150mm x 111mm x 95mm
Also includes: relay and fitment bolt/nut.
Specail feature is the Patented Twin Outlet which will prevent water ingress

Extra Loud, 139 dB Ear Splitting Air Horns. Tired of the tiny, "tinny" sound coming from your original equipment Beep Horn? Want to make sure people hear you when you Honk at them? Then this is the horn for you. Compact in size, Only 4 1/2" wide x 5 1/2" high x 3 3/4" deep.
Loud enough to convince other drivers that there's a derailed freight train barrelling down on them. Don't press the horn button in the garage, it hurts! At 139dB you can hear it on the other side of town.
Includes a single M8 mounting bolt and nut, as well as a relay for providing a direct, high current attachment to the motorcycle's battery.
The Nautilus compact horn is practical and easy to install using a single bolt fixing.
Specification:
Legality: ECE homologated
Maximum loudness: 139 dB
Type of sound: harmonised twin tone.
Weight: 600g
Metal parts treatment: zinc plated
Trumpet material: ABS plastic.
Size: 150mm x 111mm x 95mm
Also includes: relay and fitment bolt/nut.
Specail feature is the Patented Twin Outlet which will prevent water ingress