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

$57.49
SKU: Stebel

In stock

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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.



Horn Mounting Application Chart

 BMW  Application Notes  Bike Specific Mount
 F650GS & F650GS Dakar Tutorial (external link)  
 F700GS '13-'14    HMT.07.10000
 F800GS '13-'14    HMT.07.10000
 K1200R Tutorial  
 R1200GS Tutorial  HMT.07.10100
 Harley-Davidson Application Notes  Bike Specific Mount
 Low-Rider '95 Tutorial  
 Honda Application Notes  Bike Specific Mount
 CB250 NightHawk Tutorial  
 CBR1100XX Blackbird Tutorial  TWT-00-013-001
 GL1100 Goldwing Mount under the front left fairing  
 ST1100 Mount to radiator support inside right side locking dash compartment  
 ST1300 Photo  
 VRF1200FA Mount under the front left fairing  
 Shadow Photo  
 Kawasaki Application Notes  Bike Specific Mount
 KLR250 Photo  
 KLR650A    TWT-00-013-001
 KLR650E    TWT.HMT.08.004.100
 Ninja 650R '06 Photo  
 W650 Photo  
 Concours GTR1400 '09 Tutorial  
 Versys Photo  
 Vulcan 1600 Classic Photo  
 Suzuki Application Notes  Bike Specific Mount
 DL650 V-Strom '04-'14    HMT.05.10100
 DL1000 V-Strom '02-'13    HMT.05.10100
 Boulevard S40 Photo  
 Triumph Application Notes  Bike Specific Mount
 Tiger 800 & Tiger 800XC  Photo  HMT.11.10300
 Tiger Explorer 1200    HMT.11.10200
 Bonneville Photo  
 Victory Application Notes  Bike Specific Mount
 8-Ball '05 Tutorial  
 Vegas Jackpot '05-'07 Tutorial  
 Yamaha Application Notes  Bike Specific Mount
XT1200Z Super Tenere '11-'14 Photo  HMT.06.10000
 VMAX L-bracket behind right side of radiator  TWT-00-013-001
 V-Star 1100 Classic Mount between front frame downtubes  
 V-Star 650 Classic / Silverado Mount on the factory engine guard  
 XV1700 Road Star Warrior L-bracket to original right side horn mount  TWT-00-013-001

Customer Reviews
Review by Den
Rating
This is the second Stebel Nautilus horn I have purchased. The first went on my 2002 Aprilia RSVR. The second is going on my 2012 BMW K1300S. The horns that come on these bikes are apologetic; instead of a little "excuse me," you want a "WHAT THE HECK ARE YOU DOING IN MY LANE" kind of response. The Stebel is it. (Posted on 14-11-12)
Review by magyver
Rating
Finally got my nautilus dual-tone air horn working.This thing is LOUD, however, I did test it with a meter and only got 132 db. Plenty of sound but quite a bit of difference between advertised sound and actual sound.. Would still give it 5 stars. (Posted on 14-09-27)
Review by DJRFW
Rating
Whenever I buy a new bike, this is the first item I put on it. It is the best/cheapest thing you can do to increase your safety. Loud pipes help people hear you, but they are loud all the time and create too much animosity among non-riders. This is only loud when you need it to be. And it's much cheaper than new pipes.

The only problem I have ever had with this product is that I can't find a place to install it on my new Triumph Thruxton. I have installed one of these on a Honda ST1300, a Honda CB1000R, a Honda Shadow Spirit and a Suzuki Bandit. Never been disappointed in the performance. (Posted on 14-08-19)
Review by Phil
Rating
I have been using the Stebel Nautilus horn on my '05 V Strom for about 6 years now....but not the first one I bought....that was about two horns ago. I mount mine on my SW Motec crash bars, in the proper position, ie. straight up and down. The vibration from the motor must be jarring the innards loose because they quit after about a year. Don't do much riding in the rain, so can't blame it on that. They just fall apart. They are great while they work though, real lifesavers. Will try using some rubber strips for padding and see if that extends the life any.To be continued. (Posted on 14-08-07)
Review by Anonymous
Rating
This is not the same a the wooloo big boy horn that they sell at harbor freight! I have a buddy who has one of those and this one BLOWS that one away! (Posted on 14-07-07)
Review by Anonymous
Rating
I purchased the horn and am glad I did as I now have a real hearable horn instead of the weak sounding one that comes with the motorcycle. Now I can be heard! (Posted on 14-07-07)
Review by teebills
Rating
I installed the horn and it worked great for about 2 weeks. Now it spins and pumps out air but doesn't make any noise. It actually died on me while in use as a lady was coming over on me. Not a satisfied customer. (Posted on 14-07-07)
Review by Anonymous
Rating
Bought it for the bike, separated the compressor from the horn so it was easier to hide. Works wonderful! Now the "enemy" can hear me in traffic. (Posted on 14-07-07)
Review by Douglas
Rating
Seriously loud horn. excellent safety device. BMW '05 Dakar has a tiny horn. get this and save trouble. old horn was in beak of bike, plenty of places to hide wires behind things and keep it neat. use old horn wires to activate new relay. buy the wiring kit for this, save time. (Posted on 13-09-23)
Review by dana
Rating
I live in Boston and regularly ride through the Big Dig tunnel - over two miles of impatient, distracted commuters and trucks, with several turns and lane drops and additions on both sides.

Mounted inside the cowling of my 2009 DL650A. I used the included relay powered by the stock horn and power leads back to the battery.

If you give a quick hit of the horn button, the horn emits a short "bleep" - hold it down and you get the full volume.

For some reason, motorists do not react aggressively to this horn the way they do to standard diaphragm horns. So you can use it whenever there is a potential threat without irritating everyone around. I've even seen people smile at the sound!

Recommended for all cyclists and I may even put them on my eBike!
(Posted on 13-09-01)
Review by Paul
Rating
Mounted surpisingly easy in the same location as stock horn. Doesn't always work at idle but when I'm on the freeway dealing with the texting cagers, I feel like Dirty Harry with a locked and loaded .44 Magnum. "Go ahead, make my day!" (Posted on 13-06-20)
Review by arturo
Rating
I used for more yhan a year, but unfortunately I did not add the air house and in a trip to a sandy road, te horn blower got too much sand and it got a sore throat. It now sounds when its hot< and did not performed well. So I open it up to fix it and it worked for two days, so Im getting a new one it is worth every penny (Posted on 13-06-12)
Review by James
Rating
It was a little tricky finding a spot to install this on my wife's Spyder, but it did snuggle up next to the ignition coils/box on the upper left side of the engine bay. Even with the body work on, the horn sounds like a train coming down the tracks. The optional wiring kit was used to make the install easier. I wired directly off the battery with the relay mounted under the seat towards the rear where the battery + post comes through. I did leave the stock horn in place and tied in to the Steibel . . . just because more is better in this case. There should be no reason a car won't be able to hear you now! The only reason I wouldn't give this a 'five' is because I think a couple of more mounting points on the horn could have made this job easier. The wife loves it! DO NOT COME UP BEHIND A LITTLE OLD LADY PUSHING HER SHOPPING CART AND BLAST HER . . . . SHE COULD BE ON HEART MEDS. (Posted on 13-06-09)
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