Hi
I have the cycle cat ones onmy 748 and they transformed the bike for me.
I have looked at their site and they do not list a 749/999 item.
Drop them an email, they answered all of my questions quickly and were really helpful.
You need to get hold of a guy called Alfred Kobacher as they may be about to be released.
http://www.cyclecat.com/BR1-1.htm Regards Mike