If the BB5's are the road version, (can't remember which is which), then the ones I have on my Kona Sutra work just dandy, I used them both with the Shimano 105 flippy levers, and also with bar-end and Crosstop levers on my current Profile Aerobar set-up. The original brake and lever set-up were in use with the same cables for two years, with no issues at all, apart from being noisy when they got wet, then they'd sing! Power-wise, they are easily on a par with the hydros I have on my other three bikes; a pair of Juicy 7's, a pair of Hope M4's and a pair of M4 Monos, bearing in mind the 160mm rotors. Setting them up was a bit of a faff originally, but I truly can't see why anyone needs to fiddle with them continually. I NEVER had to, the bike got used right through two crappy winters and never got touched, the same this winter, after I singlespeeded it and changed the levers, the current filthy state of it will attest to that. Then again, my Hopes don't squeal all the time, either, like lots of other people's seem to, so maybe I'm just doing something right.