Originally Posted by
AndreyT
I already described it in detail in my previous message
http://www.bikeforums.net/showthread...1#post14141499
If you are not dialing-out the initial "wobble" of the BB7's actuator and pads, you are wasting a portion of the brake lever travel (creating a "dead zone" on the brake lever) and, in general case, have to adjust the pads farther apart than they really have to be to avoid dragging.
As I said before, the brakes will work well without pre-tensioning. However, pre-tensioning makes them much more consistent and responsive.
I understand now. You're saying that the pads will spread apart slightly before pinching the rotor. I'm willing to bet that this is much more pronounced in the BB5s than the BB7s(?). I say that because pre-tensioning the arm is much more critical for the BB5s.
I'll have to take a closer look at this when I get home. Perhaps I can make my BB7s operate even better! As well, I might be able to better remove brake lever....dead zone in the BB5s now that I understand this better.
Thank you.