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Stebel Nautilus Compact Dual-Tone Motorcycle Air Horn, 12-Volt, 139 dB, Black or Chrome

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$54.92
SKU: Stebel

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Dual-tone air horn from Stebel of Italy available in Black or Chrome. Loud enough to convince other drivers that there's a derailed freight train barreling down on them. Don't press the horn button in the garage, it hurts! At 139dB it can be heard for almost 3 city blocks! YEEEOOOWWW!

Note: Stebel horns currently ship in packaging with FIAMM branding, do not be alarmed, they are the same product.

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.

No wires, fuses, or bike-specific mounting brackets are included.

Need wiring help? Check out this horn relay wiring diagram. If you're still confused, you should probably buy our Plug-N-Play wiring kit for Stebel Compact Nautilus Airhorns.

Previously, I'd tried the stock (go-cart) horns on my Suzuki DL1000 V-Strom, then moved to dual FIAMM Highway Blasters with a dedicated horn relay, which were a significant improvement. Still, I felt like other drivers couldn't hear my horns very well on the highway.

With the Stebel air horn, there's no doubt that people can hear me. When I tried them outside of TwistedThrottle.com's warehouse, everyone in the warehouse (as well as two of our neighbors) came outside to see what was going on. These horns are really freakin' LOUD.

Michael, our former warehouse manager, affectionately calls them "People Deafeners."

Keep this in mind: sound energy doubles for every 3 points you go up in the decibel scale. It means that the Stebel Nautilus horn, which produces 139 dB of sound, puts out a LOT more sound than these popular horns:
- 800% of the sound energy of the more expensive 130dB FIAMM Freeway Blaster;
- 600% louder than the $140, 130 dB Pro Pad Mini Beast horn;
- 650% louder than the $179, 128dB Rivco dual trumpet horn.

You will not be dissapointed - just make sure you wire the included relay properly, as replacement horns used without a relay don't get enough electrical current to be fully effective.

Technical specifications:

  • Sound Output: 139 dB
  • Operating Voltage: 12 Volts
  • Absorbed Current: less than 18A
  • Fundamental Frequency: 530 Hz & 680 Hz
  • Weight: 0.6 kg (1.3 lbs)
  • Dimensions: Approximately 4.8"x4.5"x3"
  • Reaction time: less than 90 milli-seconds



In addition to this horn & relay, you'll need to pick up the following items from Auto Zone/Pep Boys/Radio Shack to complete installation:

MATERIALS (not included with horn):
- 14 to 16 gauge wire, 10 ft - 20 ft length (more than enough)
- 2 splice-in wire connectors (blue plastic variety)
- 6 female blade-style quick disconnects (Radio Shack 64-3049)
- 3 ring connectors for attachment to battery terminals
- 1 in-line fuse holder with 30 amp automotive fuse
- weather resistant electrical tape (or just use weather-sealed heat-shrink connectors)

Stebel Horn Vs. a stock horn on a Yamaha FJR1300



Also fits ATVs, scooters, cars, trucks, freight trains, airplanes, steamships, cotton gins, and any other vehicles equipped with 12-volt power.

Per the manufacturer, this horn should be mounted so that the cylinder is vertical (with the horn facing down). There should be no more than a 15 degree variance from the vertical position. If it is not mounted per these specifications, then the horn may cease to function after a period of time.

If you own a 2003-2005 Harley Davidson motorcycle and horn relays are repeatedly failing, please visit your local dealership to upgrade your horn button under the Harley recall.

Installation on the Suzuki DL1000 V-Strom:
To fabricate the mount shown on the Suzuki V-Strom pictured on this page, you'll need the following:
- one 20mm x 100mm x 2mm strip of aluminum or steel (to fabricate bracket)
- one metric M8 nylon locknut
(1) Drill a 6.5mm diameter hole about 10mm from one end of the metal strip, and drill an 8.5mm hole about 10mm from the other end of the metal strip.
(2) Place two 45-degree bends in the metal strip, each in opposite directions. The first bend should be about 20mm from the end of the metal strip with the 6.5mm dia. hole. The send bend should be 30mm further from the same end of the metal strip.
(3) Bolt the 8.5mm hole end of the metal strip to the horn using the M8 locknut.
(4) Bolt the 6.5mm-hole end to the bike using the stock radiator mount screw on the left side of the bike, facing the offset toward the center of the motorcycle.

Installation on other bikes may vary! If you've documented how to install the horn on your bike, send us the photos & instructions, and we'll post them for everyone!

Note: The horn model offered here is the Compact Stebel Nautilus model, which is produced in all black OR chrome with black trim. The Compact Nautilus is the smallest, loudest, most vibration-resistant model offered by Stebel, and is the most appropriate for use on motorcycles.

The Original Stebel Nautilus is a significantly larger (but not louder) horn model that is produced by Stebel in black, red, or chrome-plated plastic. It is prone to damage from motorcycle vibration, and the chrome-plated plastic version has a poor finish that chips easily. For these reasons, we do not offer the Original Nautilus model.

The below fit chart lists a few of the horn & bracket combinations that we've tested. With a little creativity, the horn can be mounted on almost any motorcycle, car, or truck!

Confirmed fit list

BMW


Buell

  • Blast


Harley Davidson


Honda

  • CB250 Nighthawk (see installation tutorial)
  • CBR1100XX Blackbird (use TWT-00-013-001 2.5" L Bracket and see installation tutorial)
  • GL1100 Goldwing (Left side, under front fairing)
  • ST1100 (mount to radiator support inside right-side locking dash compartment)
  • ST1300 (mount to support inside right-side locking dash compartment)
  • VFR1200FA (mount under the front left fairing)


Kawasaki


Suzuki

  • AN400 Burgman (see photo of installation above)
  • DL650 V-Strom (HMT.05.10100)
  • DL1000 V-Strom (HMT.05.10100)
  • GSF600 Bandit
  • GSF1200 Bandit
  • Intruder VL 1500
  • Intruder LC 1500
  • S40 Boulevard (see photo above)
  • SV650, '03- (see photo above) Alternately, can be placed in the right front fairing.


Triumph

  • Bonneville (see photo above)
  • Sprint ST 955i, -'04
  • Tiger 955i


Victory


Yamaha

  • FZ1, '01-'05
  • VMAX with L bracket behind the right hand side of the radiator.
  • V-Star 1100 Classic (mount between front frame downtubes)
  • V-Star 650 Classic/Silverado - mount on the factory engine guard
  • XV1700 Road Star Warrior, all years (mounts to original right-side horn mount using 2.5" L Bracket)


Customer Testimonial: Alan W. I found that using an L bracket from Stanley and painting it flat black it looks great on my VMAX. I mounted it right behind the radiator on the right hand side of the bike. Be sure to move your bike outside before letting it loose. This is one loud horn that will get everyone's attention.

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