Second day on the new IRO! I replaced the stem, BB, Crank, chainring, rear cog, handlebars and brake levers last night before watching Heroes. Now it works. I threw on flat bars, added barends, and now that the left crankarm isn't coming off, I can pedal! I think I may invest in a post with more rear offset to get me a bit stretched out. I'm still surprised at how bad the bullhorns were - very uncomfortable, even after fiddling with the angle a bunch. The setup is basically the same as my Specialized conversion, but a bit more stable thanks to the longer wheelbase. It's also quieter, at least until I put fenders on.