Avid BB7 question

everogere

I have just fitted Avid BB7 mechanical disc brakes. They work really well but I have noticed that the rotor is pushed towards the wheel before they grip as the outside pad makes contact first. I have adjusted them exactly as the instructions show. Is this right or should the pads contact the rotor at the same time??

nicklouse

correct it should be pushed a bit. hence the offset set up at the start. only one side moves so the disc has to be moved onto the static pad. But the less deflection the better.

everogere

Thanks nicklouse

xtreem

[b]nicklouse[/b] wrote:

correct it should be pushed a bit. hence the offset set up at the start. only one side moves so the disc has to be moved onto the static pad. But the less deflection the better.

Hmmm... good information there, same to me like everogere, on my BB5, but the pads are pushing the disc more on the front than the rear.
So that would be ok, thanks from me too.

nicklouse

sounds like yours are misaligned.

but what do you mean by

but the pads are pushing the disc more on the front than the rear.

xtreem

Mine is more on the front, and in the rear very little, perhaps non.
This is my problem, well not of a problem but...: When I press the brake lever,
the left(outer) pad moves more than the right one, and so the disc is pushed
probably 0.5mm or less to the right pad. But as you said, that's ok.

I think I didn't write that very well on the previous post. Sorry :oops: .
On the rear brake the left pad makes contact first like the on the front brake,
but this rotor(rear), is pushed probably a fraction of a mm.