Originally Posted by
rat fink
I don't know (nor will pretend to know) exactly why, but the difference you experienced is one that I've come to appreciate, as having a big effect on feel. The best way I could describe it, is that with a high high BB, it feels like you are astride the bike. With a low bb, it feels more like you are in the bike. I will say that lowering your stem 2cm and possibly using a longer stem are good ideas if you liked the way the Tiara fit.
I'm inclined to agree with you. At least in the length department. I've wanted a DA stem for the bike but their vertical extension is fairly short. I'll play around with the height of what I have and if it turns out that a little lower works out I may revisit the DA stems.