Originally Posted by
zjrog
I got the BB5 Road in yesterday, I didn't get a chance to put it on last night. But, I can tell you that I am now quite certain the brakes on the bike are MTB. The pull on the arms are completely different, At the point in travel on the MTB caliper, the Road is fully engaged on the rotor. I'm glad there is a rotor included, as there is a tiny bump in my existing rotor... Even so, that bump isn't the issue. Cable pull was. I still don't fully understand how the front is so nice, and the rear worked, but doesn't now. It looks like it will be a nice weekend, so I hope to get some trail time on the bike.
A lack of compressionless housing could explain it. If you have squishy housing, you have to run your brake pads really close in order to compensate for the fact that so much of your lever throw is dedicated to compressing your housing. The rear brake housing has more squish than the front, especially if you’re using full length housing (side note: I believe this “squish” is the reason that frame stops exist).
You may have a better setup now, but I would still recommend compressionless, since it will allow for more clearance and/or more power and max lever throw.