Has anyone fitted a louder aftermarket horn to any bike that is a reasonable size? I believe that vehicles should have loud horns to alert other road users more so when riding. I like the Stebel Nautilus Compact. Trying to find a place to mount it is a showstopper. Have a listen... http://www.stebel.it/stebel2012/products.asp?IDserie=14&uso=1&tipologia=moto
Motorcycle Consumer News just did a comparison of a number of horns. They liked the Hella Twin Tone horn set (TE16) the best at $25 from Amazon. I've installed a number of Stebel Nautilus compact horns on various bikes and like them a lot, but they're bulky. You can separate the horn from the compressor though and mount them separately --- I've done that on a Super Tenere' where the horn is mounted on the fork leg and the compressor is mounted under a panel with the fuses and relays. I've also used small PIAA dual horns with good results. I have yet to add an accessory horn to my Strada.
What sort of PIAA horns did you buy nwrider1? Due to space constraints, I brought a Stebel HF80 low & high tone horn set. I cobbled together a bracket & wiring to test the sound output. Unfortunately not much of an improvement over the factory item at least sitting on the saddle while riding anyhow.
Sorry, I've been AWOL. I used PIAA sports horns that I bought on amazon. I no longer have the box they came in and I don't remember what Hz they are -- they sell 400/500 and 500/600 Hz combos.
Since you're in Oz....either one or the pair of Bosch's or later FIAMM's like those http://www.ebay.com.au/itm/PAIR-OF-...CTORY-HI-LO-NOTE-HORNS-EXC-COND-/251523671143 can be had for $5-10 pair from any car wrecker. About 2-3 times the output of the bike-tweeters and DON'T require a relay, just use the stock electricals (might need different connectors, though)