I did the conversion to a flat-bar hybrid bike (Trek FX 7.3). I did it 'on-the-cheap', using non-aero brake levers, bar-end shifters, and also had to change the barstem since road bars are larger (diameter) than MTB bars. So far I'm happy with it, and find it more comfortable than the flat bar. I don't use the drops very often, so I could have used an aerobar or wide bullhorns. I also looked at using treking bars, but those are as wide (sometimes wider) than MTB bars.