The stock air horn on the Troohy is small and weak. There were a couple of times that I wanted a driver to know I was close by and the stock horn wasn’t doing the job I decided to install a very loud air horn on my bike. I bought a set with the horn and compressor as separate pieces connected with an air hose. Fortunately there was just enough room to mount both pieces.

I had to remove the skin of the Trophy to mount the horn and compressor. Be sure to watch the video in this sereies on removing the skin.