I can't seem to find it now, but someone wrote an article on Crazyguyonabike about his set up which featured bullhorns with clip on aero bars. He used bar end shifters and had- I think- MTB levers mounted face down. I considered trying that for a Univega MTB project, but went with Crazy Bars instead.
Last edited by UDFA; 04-05-18 at 08:54 PM.
Reason: Omitted important info