Originally Posted by Dert Gerl
The MX ones are made by Rekluse. I had one in my 450 and didn't like it because I couldn't seem to get it adjusted right, but know lots of people that have them and swear by them. In fact, one of my riding buddies on a 950 super enduro has one and loves it. Gives the opportunity for a left hand rear brake as well. (I'd kill myself with one.) I don't know that they make a kit for the 800 though.
Currently they just show one for the KTM990 and the KLR650. I am going to inquire about it and will post what I find out.