BOOSH!Joined: 17 Jul 2007Posts: 2042Location: Nearest bar.
I'm new to disc brakes and could use some direction on adjusting them. They're the Avid BB7 "baby's first disc brakes" disc brakes.
I've RTFM and I get that I'm supposed to zero-out the pads by turning the knobs on both sides, but all instructions say to turn the in-board knob counter-clockwise "all the way" like it's supposed to stop like the outer one does, but it doesn't. I can just keep going all the way until it comes off.
So, my question is, how do I "zero out" this pad? I feel like I'm guessing on when to stop turning it and then bringing in the outer pad to align it and then tighten the whole mount down. I spent quite a bit of time messing with it, and it felt like I was never going to stop any rubbing.
They're good now, but I mean I feel like I could get them a little closer if I could get this alignment down to bring the outer pad in a bit more.
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joeball
Posted: Mon Feb 22, 2016 11:25 am
Joined: 24 Jul 2005Posts: 6037Location: Ether
Are you using a new rotor that is true?
IIRC, The directions for presenting the pad dials are just suggestive. You mainly want to have them so you have a range of pad movement and are not at the max or min range.
With the bolts on the caliper to adapter loosened, start adjusting both pads in evenly. Ending up with the rotor clamped tight by both pads.
This should align the loosened caliper to the rotor ( that should be true)
Now tighten the two loosened bolts on the caliper to adapter to lock the caliper In place.
Start backing off the pad dials until the wheel spins freely.
Notice that when you pull the lever only one pad moves towards the rotor. You want the fixed pad to be relatively close to the rotor. The movable pad can be further out. By varying the position of the outer pad you can vary where the brakes engage based on brake lever position.
Basically at that point I just dial the pad positions based on if the rotor is brushing the pads and on desired brake lever feel.
MyNameIsJeff
Posted: Mon Feb 22, 2016 12:01 pm
BOOSH!Joined: 17 Jul 2007Posts: 2042Location: Nearest bar.
Well, well I'll stop worrying about how far to back out the inner dial. What you described is inline with my understanding of how to do this. Perhaps I just need a little practice.
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BOOSH!
Joined: 17 Jul 2007
Posts: 2042
Location: Nearest bar.
Joined: 24 Jul 2005
Posts: 6037
Location: Ether
