Stebel Nautilus Horn Review
by Rick and "Burn" for webBikeWorld.com
More: wBW Reviews Home | Owner Comments (Below)
| wBW Motorcycle Horn Comparison |
Summary: Seemed very loud while it lasted, all 3 seconds of it. The horn failed after about 4 beeps.
Our Stebel Nautilus Compact was inoperative right out of the box, so Stebel has some work to do on the quality of these horns. Not recommended.
I'm not sure if we've ever given a product a "Not Recommended" rating, but what else can we do? The Stebel Nautilus "Max" shown here, which is supposedly rated at 139 dB, failed after only a few seconds of use, four beeps to be exact.
And the Stebel Nautilus Compact, also covered in this comparison, was dead on arrival -- it did not work even for an instant, and it was brand new, right out of the box.
We didn't even get a chance to run the big, red Stebel Nautilus Max through the sound level meter, so it's uncertain how it would score against the other horns in this comparison article. It did seem loud while it lasted though, but it has an "air horn" quality that not everyone likes.
The Stebel Nautilus horns of either variety are very large and have a very irregular shape. This and the very poor mounting bracket (the half-moon shaped cutout in the top of the cylinder in the photo above) makes it very difficult to fit on a motorcycle. Owners would probably have to fashion a custom-made bracket of some sort.
But it would be nearly impossible to mount anyway on the slim GT1000 and who knows how it would sound when the horn was pointed downwards, to keep out water, as the instructions indicate.
But the loudest motorcycle horn in the world is useless if it can't be trusted, and based on our experience with the Stebel Nautilus horns, we'd rather take a few less dB but have something that's going to work when needed.
A horn that looks similar to this one is listed on the Stebel website, but not this exact model, so we're not sure if this one has been discontinued or if it simply isn't listed as a North American model.
This Nautilus is an impressive-looking beast, with a big curved horn body. We also recorded the sound made by a Nautilus when it isn't working; see the sound file table in the horn comparison home page.
Here's a photo of the two Stebel Nautilus horns side-by-side:
Stebel Nautilus "Max" (left); Stebel Nautilus Compact (right).
We can't recommend a horn that didn't work. We've read many reports from owners on problems with the Stebel Nautilus, so until someone can convince us that the issues have been resolved, these get a "Not Recommended" rating.
Stebel Nautilus .MP3 Sound File: Stebel Nautilus Max (0:0:10) | More...
| wBW Motorcycle Horns Reviewed: | Comparison Home | Hella Supertones | Fiamm Freeway Blasters |
|---|---|---|---|
| Stebel Magnum | Stebel Nautilus Max | Stebel Nautilus Compact | |
| wBW Horn Comparison Redux: | Part 2 Comparison: Hella "Pancakes" vs. Hella Twin Tone, Stebel Magnum and the Stock Suzuki DR650 Horn. | ||
| wBW Review: Stebel Nautilus Horn | |
|---|---|
| Available From: Stebel S.p.a. | Suggested
Retail Price: $39.99
Selling for less at Amazon.com!
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| Colors: Red | Made in: Italy |
| Review Date: August 2008 | |
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From "Z" (05/11): "I've had a Stebel horn on my '08 Harley Ultra for a couple of years. At first, it was as loud as could be, and really did work to alert errant cagers. After about a year, I noticed the output was very low, like an angry chicken.
As others pointed out, the plastic junction between the horn and the compressor had started to separate. A couple of loops of lockwire laced the units together, and it has held for about a year. Now, the sound is decreasing again, to just a high-pitched squeak.
As a stopgap measure, I was able to resuscitate it by spraying a Teflon-based lubricant into the intake. That has helped, but I do not expect it to work long-term. It will be just enough until I purchase another horn.
The intake needed protection from road grit and rain. Trying to come up with a filter for that little plastic piece was a small puzzle. Then I happened upon some filter cartridges at the local pet store. These were the ones for an aquarium filter, like a long paper cigarette filter. A pack of a dozen costs about $2, and on my bike, they're out of the water stream when it rains.
As far as mounting, I was able to fabricate a small strap bracket that held the horn in the same location as the original, without separating the components or hitting against the engine. The horn and compressor are mounted vertically, so that potential cause of failure has been completely absent.
The only change I made there was putting compatible terminals on the wiring harness. A relay is a must, or your stock horn switch will be ruined. I went ahead and put the relay in place, and not believing that the horn could draw so much current, put a 10 Amp fuse in the holder. That fuse popped as soon as I hit the button. Next was a 15 AMP, with a slightly delayed pop. The horn circuit now has a 20 Amp fuse, just over the stated 18 Amp requirement, with no failures.
Based on how the horn sounded when I first got it, I thought it would be perfect, that I wouldn't need another. However, the continual fiddling to preclude failure makes me wonder about buying another. An electromagnetic horn would be more reliable, and easier to mount. Taking the horn apart, making better vanes to put in the compressor, and honing out the bore is an idea, but probably would make a good winter project."
