I've got a little problem with my disc brakes. Bought a Giant Seek 2 recently with disc brakes, and both the front and back brakes have a periodic sticking. Once per revolution they grip more than they do otherwise. Needless to say, this makes braking inconsistent and annoying. Any idea what the problem is? I brought it in, and the guy who took a look at it said he didn't know how to fix it, but it sounds like a totally fixable problem.
Edit: Brake...not break...whoops.