I have a Speigler setup on my 97 XX. It consists of a Speigler upper triple tree and Speigler steel handlebars. It really isn't that comfortable for me, but I've never ridden on stock clip-ons, so I can't really compare. I can raise the front end up about 2 1/4" in the trees if I want. I need to try it to compare riding positions. I've never seen them elsewhere, and they were on the bike when I got it. The handlebars have a serial # on them of 0028. I'm not sure if they were prototypes, or short production run. Anybody else have this setup? Can post pics if needed.
Scott