Ducati Monster Forum

Curious to know if anybody out there has tried this sucker out yet? 

http://www.griotsgarage.com/product/car+accessories/exterior+accessories/black%2C+ultra+compact+air+horns.do (http://www.griotsgarage.com/product/car+accessories/exterior+accessories/black%2C+ultra+compact+air+horns.do)

140 dB SPL at 4 ft is about the same volume as a gunshot.  This thing could probably take out small animals.

I've got one on my bike ... lots of other guys on the board do, too.  The same horn is available under lots of brand names.  The most common one is Stebel Nautilus (the original manufacturer). 

It's great for waking up the cagers.  You do ride with ear plugs, right?  You'll need 'em!

im intrested in that truck sounding horn.

Like NAKID pointed out, it sounds like a high tone, and a higher tone. not a dual tone (low and high).

either way, its frekin LOUD and will pierce the windows of those new cars that block outside noise out.Its saved my life plenty of times.

For me, 4 3/4" tall, 2 3/4" wide, and 4 1/4" deep is not "compact."

Large for a motorcycle horn, but compact for an air horn.  [thumbsup]

i have the stebel nautilus( same thing) installed on my '05 S2R. i was able to mount it in the same spot as the stock horn by making a bracket, & keeping it  at a less than 15 degree angle(factory reccomendation) & not blocking the oil cooler.  L O U D. VF'G  LOUD.

Any pics of it installed?

Yes,  I ride w/ ear plugs.  So the Wolo Badboy horn is Italian as well?

Stebel... Wolo... They're all the same basic unit. I got mine at Harbor Freight for $30 on sale. Mounted in stock location with no bracket mods... I just had to add a second nut to the back of the bolt to tighten it down. 6k miles, still fully attached.

Cagers REALLY hear this thing. I almost got sideswiped one day after work, went to Harbor Freight, spent 30 minutes hooking it up. Next day some minivan tries the same move as I was moving past. Hit the horn, and she overcorrected and hit the curb... all at 40mph. Serves her right for not looking.

Cheap life insurance policy.

I bought a "cheap knock-off" brand for half the price.  When I got it and popped off the plastic trim covering the diaphragm, the part underneath was clearly branded "Stebel Nautilus".   ;D  They OEM for lot's of folks, apperantly.

I have the Wolo Bad Boy on my truck. I killed it by not mounting it vertically and not adequately protecting it from water.
I have it mounted behind my bumper, but apparently it was getting soaked from water cast off from my front tire.

I had some spare aluminum sheeting in my garage and fabbed up a sheild to keep the water off of it. We'll see how it holds up tomorrow...

Is the factory horn powered through a relay?  If not, replacing the factory horn with a stebel will cause some wiring problems you won't like.  It draws about 18 amps of current (from the specs) and most bike horn wiring won't deliver that amount of current without heating up.  A LOT.  I know of several people that burned up their left handlebar switch cluster (on VTX1800s) by replacing the horn without wiring it properly through a relay.

If the Duc horn is powered through a relay and the handlebar switch is just turning the relay on and off, that is much better.  You will still need to put in heavier wiring to the horn relay and on to the horn that will handle the current, or you could create a big problem with the wiring harness.

The kit (stebel atleast) comes with a relay. You should technically run a fuse too. I never did, and i've had a few instances where my finger was on the horn for over 40 seconds at a time. Supposely without the relay, the horn is really week.

http://ducatimonsterforum.org/index.php?topic=3191.msg103914#msg103914 (http://ducatimonsterforum.org/index.php?topic=3191.msg103914#msg103914)

 [thumbsup]

You're correct and since it is carrying a fair amount of current, I think it must be fused and run directly from the battery to the relay.  I reviewed the wiring diagram and I don't see a relay in the horn circuit.  As long as the horn switch is used to close a relay, the bike's wiring is safe.  Running the horn directly from the existing wiring is a bad idea, and it will be weak-sounding as well.

I believe the Stebel install instructions make this clear - I was just making the point again so that someone doesn't just plug in a stebel and burn up the switch and/or wires.

Actually, most people that don't install the relay find that the pump motor is what burns up.  Without the proper current, it dies prematurely.  I've seen the same story many times from many people (on the net).

so is it best to get it with the "deluxe wiring kit" as available on this site??  http://www.bikerhiway.com/wiring-kit-for-stebel-nautilus-compact-motorcycle-air-horn-p-281.html

link to horn:  http://www.bikerhiway.com/stebel-nautilus-compact-motorcycle-air-horn-black-p-74.html

I would not buy the "deluxe wiring kit" myself.  To me, what they are actually selling is "some way-overpriced stuff that you might need to install this but you will still have to go to the hardware store at least once before you are finished" parts package.

Most folks that do any wiring on bikes or cars will have what is needed in the parts bin in the garage.  The relay is included with the horn, so as long as you have some female 1/4 spade terminals for the relay you're good to go - the rest is just solder and shrinkwrap.

I forgot (sorry) the owner's name.  I took this picture of the attached airhorn on his S4RS and I'm highly considering doing the same on my S4RS.  the setup looks very OEM and it doesn't stick out like a sore thumb, IMO  [thumbsup].  Also, there's no air flow blocking the radiators.  He used the same OEM horn bolt hole locations.  Oh and also, it's directly wired to OEM wiring without the relay and it's still loud.

(http://farm4.static.flickr.com/3246/3027532535_ea42d3bc4c_o.jpg)

Exactly. The relay was included with my Wolo horn and I had wiring and female spades in the garage already...