Hello,

I have a Trek Madone 4.5 and the brake constantly shift back and forth and rub on the wheel. I have straightened them and tightened them down, but they start to slide. I can get them to stay put if I crank down on the screw but am afraid of breaking the carbon frame. Any suggestions?

Example: I was cleaning my bike, hopped on it for a quick ride around the block and noticed I was stopping as soon as a stopped pedaling. I hopped off and looked at my brake pads only the find the front and back brake housing units had shifted over so one brake pad was constantly rubbing the wheel.

Broady